Surgical Tech (Appleton & Lange) Part 2
Questions from the Appleton and Lange workbook study guide part 2 questions 101-200.
Questions and Answers
- 1.
The descending aorta terminates at the level of the fourth lumbar vertebra, dividing into
- A.
Two saphenous arteries
- B.
Two femoral arteries
- C.
Internal and external iliac arteries
- D.
Two common iliac arteries
Correct Answer
D. Two common iliac arteriesExplanation
The descending aorta terminates at the level of the fourth lumbar vertebra and divides into two common iliac arteries. These arteries are responsible for supplying blood to the pelvis, lower abdominal organs, and lower limbs. They further divide into internal and external iliac arteries, which continue to supply blood to specific regions of the body. The mention of saphenous arteries and femoral arteries in the options is incorrect as they are not direct branches of the descending aorta.Rate this question:
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- 2.
The contractions of the heart are synchronized and regulated by the pacemaker of the heart, called the
- A.
Sinoatrial node
- B.
Atrioventricular node
- C.
Atrioventricular bundle
- D.
Purkinje fibers
Correct Answer
A. Sinoatrial nodeExplanation
The correct answer is the sinoatrial node. The sinoatrial node is responsible for initiating the electrical impulses that regulate the contractions of the heart. It is located in the upper part of the right atrium and acts as the natural pacemaker of the heart. The electrical impulses generated by the sinoatrial node travel through the atria, causing them to contract, and then to the atrioventricular node, which delays the impulse before transmitting it to the ventricles. This synchronization and regulation of the contractions ensure that the heart pumps blood efficiently.Rate this question:
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- 3.
Tiny blood essels that permeate and nourish tissue are called
- A.
Veins
- B.
Venules
- C.
Arterioles
- D.
Capillaries
Correct Answer
D. CapillariesExplanation
Capillaries are tiny blood vessels that permeate and nourish tissues. They are responsible for the exchange of oxygen, nutrients, and waste products between the blood and the surrounding tissues. Capillaries have thin walls, allowing for easy diffusion of substances. Veins carry blood back to the heart, venules are small veins, and arterioles are small arteries. However, only capillaries are specifically described as tiny blood vessels that permeate and nourish tissue.Rate this question:
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- 4.
The wall or partition dividing the heart into right and left sides is called the
- A.
Semilunar valve
- B.
Mitral valve
- C.
Chordae tendineae
- D.
Septum
Correct Answer
D. SeptumExplanation
The wall or partition dividing the heart into right and left sides is called the septum. The septum separates the two sides of the heart, ensuring that oxygenated and deoxygenated blood do not mix. It plays a crucial role in maintaining the efficiency of the circulatory system by directing blood flow to the appropriate chambers of the heart. The other options, such as the semilunar valve, mitral valve, and chordae tendineae, are not correct in this context as they refer to different structures within the heart.Rate this question:
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- 5.
The heart valve that closes at the time the right ventricle begins pumping, preventing blood from returning to the right atrium, is the
- A.
Aortic semilunar
- B.
Pulmonary semilunar
- C.
Bicuspid
- D.
Tricuspid
Correct Answer
D. TricuspidExplanation
The tricuspid valve is the heart valve that closes at the time the right ventricle begins pumping, preventing blood from returning to the right atrium. It is located between the right atrium and the right ventricle. When the right ventricle contracts, the tricuspid valve closes to prevent the backflow of blood into the right atrium. This ensures that blood flows in one direction, from the right atrium to the right ventricle, and then to the pulmonary artery for oxygenation.Rate this question:
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- 6.
The inner lining of the heart, composed of smooth, delicate membrane, is called the
- A.
Pericardium
- B.
Endocardium
- C.
Epicardium
- D.
Myocardium
Correct Answer
B. EndocardiumExplanation
The inner lining of the heart is called the endocardium. It is composed of a smooth and delicate membrane that lines the chambers of the heart and covers the heart valves. The endocardium helps to reduce friction as blood flows through the heart and also plays a role in preventing blood clots from forming.Rate this question:
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- 7.
The spleen is located
- A.
In the left hypochondriac region
- B.
Behind the liver
- C.
Behind the left kidney
- D.
Behind the right kidney
Correct Answer
A. In the left hypochondriac regionExplanation
The spleen is located in the left hypochondriac region. This region is situated on the left side of the abdomen, just below the rib cage. The spleen is an organ that is part of the lymphatic system and plays a role in filtering and storing blood, as well as producing white blood cells. Its location in the left hypochondriac region allows for easy access to blood vessels and lymphatic channels, facilitating its functions within the body.Rate this question:
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- 8.
All of the following are parts of the lymphatic system EXCEPT the
- A.
Thyroid
- B.
Tonsils
- C.
Spleen
- D.
Thymus
Correct Answer
A. ThyroidExplanation
The lymphatic system is responsible for maintaining fluid balance, filtering out harmful substances, and producing immune cells. The thyroid, on the other hand, is part of the endocrine system and is responsible for regulating metabolism. While the tonsils, spleen, and thymus are all part of the lymphatic system and play important roles in immune function, the thyroid is not involved in these processes. Therefore, the correct answer is thyroid.Rate this question:
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- 9.
The s-shaped bend in the lower colon is called the
- A.
Hepatic flexure
- B.
Splenic flexure
- C.
Rectum
- D.
Sigmoid
Correct Answer
D. SigmoidExplanation
The correct answer is sigmoid. The sigmoid is the S-shaped bend in the lower colon. It is located between the descending colon and the rectum. The sigmoid colon is responsible for the final stages of the digestive process, where water and electrolytes are absorbed from the remaining waste material before it is eliminated from the body.Rate this question:
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- 10.
The reabsorption of water and electrolytes is the main function of the
- A.
Sigmoid colon
- B.
Large intestine
- C.
Small intestine
- D.
Liver
Correct Answer
B. Large intestineExplanation
The large intestine is responsible for the reabsorption of water and electrolytes. This is an important function as it helps in maintaining the body's fluid balance and preventing dehydration. The large intestine also plays a role in the formation of feces by absorbing water from the undigested food material that passes through it. Additionally, it houses a large number of beneficial bacteria that aid in the digestion of certain substances and produce vitamins. Overall, the large intestine is crucial for the final stages of digestion and the absorption of essential nutrients.Rate this question:
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- 11.
The terminal portion of the large intestine is the
- A.
Sigmoid
- B.
Rectum
- C.
Anus
- D.
Anal canal
Correct Answer
D. Anal canalExplanation
The anal canal is the terminal portion of the large intestine. It is the last part of the digestive tract and is responsible for the elimination of waste material from the body. The anal canal is located between the rectum and the anus, and it contains two sphincter muscles that help control the passage of feces. It is lined with specialized cells that can detect the presence of feces and trigger the urge to defecate.Rate this question:
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- 12.
Which structure lies retroperitoneally?
- A.
Sigmoid colon
- B.
Spleen
- C.
Liver
- D.
Kidney
Correct Answer
D. KidneyExplanation
The kidney lies retroperitoneally. This means that it is located behind the peritoneum, a membrane that lines the abdominal cavity. The retroperitoneal space is located outside the peritoneal cavity, which houses organs such as the liver, spleen, and sigmoid colon. The kidney's retroperitoneal position helps protect it from external forces and allows for its proper functioning in filtering and excreting waste products from the body.Rate this question:
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- 13.
The first portion of the large intestine is the
- A.
Sigmoid
- B.
Cecum
- C.
Colon
- D.
Ileum
Correct Answer
B. CecumExplanation
The correct answer is cecum. The cecum is the first portion of the large intestine, located in the lower right quadrant of the abdomen. It receives undigested food from the small intestine and begins the process of absorption and fermentation. It also contains the appendix, a small finger-like projection that plays a role in the immune system. The sigmoid colon is the S-shaped portion of the large intestine, while the colon refers to the entire large intestine. The ileum is the final section of the small intestine.Rate this question:
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- 14.
The appendix is attached to the
- A.
Ascending colon
- B.
Transverse colon
- C.
Cecum
- D.
Descending colon
Correct Answer
C. CecumExplanation
The appendix is a small, finger-like pouch located at the beginning of the large intestine. It is attached to the cecum, which is the first part of the large intestine. The cecum is a pouch-like structure that connects the small intestine to the colon. The appendix is attached to the cecum and serves as a reservoir for beneficial bacteria and lymphoid tissue, which helps in immune function.Rate this question:
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- 15.
The primary function of the gallbladder is
- A.
Storage of bile
- B.
Production of bile
- C.
Digestion of fats
- D.
Drainage of the liver
Correct Answer
A. Storage of bileExplanation
The gallbladder's primary function is to store bile. Bile is a substance produced by the liver that helps in the digestion and absorption of fats. The gallbladder collects and concentrates bile, releasing it into the small intestine when needed to aid in the breakdown of fats. This storage function allows the body to have a reserve of bile, ensuring a consistent supply for the digestion of fats.Rate this question:
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- 16.
When the gallbladder contracts, bile is ejected into the
- A.
Liver
- B.
Jejunum
- C.
Pancreas
- D.
Duodenum
Correct Answer
D. DuodenumExplanation
When the gallbladder contracts, bile is ejected into the duodenum. The gallbladder stores bile, which is produced by the liver. When food enters the duodenum, a hormone called cholecystokinin (CCK) is released, which causes the gallbladder to contract. This contraction forces the bile to be released into the duodenum through the common bile duct. Bile plays an important role in the digestion and absorption of fats in the small intestine.Rate this question:
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- 17.
The area in the duodenum where the common bile duct and the pancreatic duct empty is called
- A.
The duct of Santorini
- B.
The ampulla of Vater
- C.
Wirsung's duct
- D.
The islet of Langerhans
Correct Answer
B. The ampulla of VaterExplanation
The area in the duodenum where the common bile duct and the pancreatic duct empty is called the ampulla of Vater. This structure acts as a junction point for the flow of bile and pancreatic enzymes into the small intestine. It is named after Abraham Vater, a German anatomist who first described it in the 18th century. The ampulla of Vater plays a crucial role in the digestion and absorption of fats and proteins.Rate this question:
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- 18.
Which structure is also known as the "fatty apron"?
- A.
Greater omentum
- B.
Lesser omentum
- C.
Mesentery
- D.
Falciform ligament
Correct Answer
A. Greater omentumExplanation
The greater omentum is also known as the "fatty apron" because it is a large fold of fatty tissue that hangs down from the stomach and covers the intestines. It is attached to the greater curvature of the stomach and extends down over the front of the intestines, providing protection and insulation for the abdominal organs.Rate this question:
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- 19.
The common bile duct is the union of the
- A.
Cystic duct and cystic artery
- B.
Cystic duct and hepatic duct
- C.
Cystic artery and hepatic duct
- D.
Hepatic vein and cystic duct
Correct Answer
B. Cystic duct and hepatic ductExplanation
The common bile duct is formed by the union of the cystic duct and the hepatic duct. The cystic duct carries bile from the gallbladder, while the hepatic duct carries bile from the liver. The common bile duct then transports the bile to the small intestine, where it aids in the digestion and absorption of fats.Rate this question:
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- 20.
The yellow tinge in the skin symptomatic of obstructivejaundice is caused by the accumulation of what substance in the blood and tissue?
- A.
Cholesterol
- B.
Bile salts
- C.
Enzymes
- D.
Bilirubin
Correct Answer
D. BilirubinExplanation
Obstructive jaundice is a condition where there is a blockage in the bile ducts, preventing the normal flow of bile. Bile is a substance produced by the liver, which contains bilirubin. Bilirubin is a yellow pigment that is formed when red blood cells are broken down. In obstructive jaundice, the accumulation of bilirubin in the blood and tissues leads to the yellow tinge in the skin. Therefore, the correct answer is bilirubin.Rate this question:
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- 21.
The head of the pancreas is located
- A.
In the curve of the duodenum
- B.
By the spleen
- C.
On the undersurface of the liver
- D.
In the curve of the descending colon
Correct Answer
A. In the curve of the duodenumExplanation
The head of the pancreas is located in the curve of the duodenum. The duodenum is the first part of the small intestine, and it curves around the head of the pancreas. This location is important because it allows the pancreas to be in close proximity to the digestive system, where it can release digestive enzymes and hormones into the duodenum to aid in the digestion and absorption of nutrients.Rate this question:
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- 22.
The sphincter at the junction of the small and large intestines is the
- A.
Sphincter of Oddi
- B.
Ileocecal sphincter
- C.
Phloric sphincter
- D.
Duodenal sphincter
Correct Answer
B. Ileocecal spHincterExplanation
The correct answer is the ileocecal sphincter. The ileocecal sphincter is located at the junction between the small intestine (ileum) and the large intestine (cecum). It acts as a valve, regulating the flow of digested food from the small intestine into the large intestine. This sphincter prevents the backflow of fecal matter into the small intestine and helps maintain the separation between the two sections of the digestive system.Rate this question:
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- 23.
The portion of small intestine that receives secretions from the pancreas and the liver is the
- A.
Ileum
- B.
Jejunum
- C.
Duodenum
- D.
Pylorus
Correct Answer
C. DuodenumExplanation
The duodenum is the portion of the small intestine that receives secretions from the pancreas and the liver. It is the first part of the small intestine and plays a crucial role in the digestion process. The pancreas releases digestive enzymes and the liver secretes bile into the duodenum to aid in the breakdown of fats and proteins. This allows for the absorption of nutrients from the digested food in the subsequent parts of the small intestine.Rate this question:
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- 24.
The region of the stomach that connects to the duodenum is the
- A.
Fundus
- B.
Body
- C.
Pylorus
- D.
Cardia
Correct Answer
C. PylorusExplanation
The region of the stomach that connects to the duodenum is called the pylorus. The pylorus is located at the lower end of the stomach and serves as a gateway between the stomach and the small intestine. It contains a circular muscle called the pyloric sphincter, which controls the flow of partially digested food from the stomach into the small intestine. This region plays a crucial role in regulating the movement of food through the digestive system.Rate this question:
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- 25.
The mesentery is
- A.
A double-layered peritoneal structure shaped like a fan
- B.
A word synonymous with "fatty apron"
- C.
The membrane covering the surface of most abdominal organs
- D.
A structure that supports the sigmoid colon
Correct Answer
A. A double-layered peritoneal structure shaped like a fanExplanation
The mesentery is a double-layered peritoneal structure shaped like a fan. The mesentery is a fold of tissue that attaches the intestines to the abdominal wall, providing support and allowing for movement. It contains blood vessels, nerves, and lymphatics that supply the intestines. The mesentery plays an important role in maintaining the position and function of the intestines within the abdominal cavity. Its fan-like shape allows it to wrap around and support the intestines, keeping them in place and preventing them from twisting or becoming tangled.Rate this question:
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- 26.
The large central portion of the stomach is called the
- A.
Pylorus
- B.
Body
- C.
Fundus
- D.
Cardia
Correct Answer
B. BodyExplanation
The large central portion of the stomach is called the body. The body of the stomach is responsible for storing and breaking down food, as well as mixing it with digestive enzymes and acids. It is located between the fundus (the upper part of the stomach) and the pylorus (the lower part of the stomach). The body of the stomach expands and contracts to accommodate the amount of food being consumed, and it plays a crucial role in the digestion and absorption of nutrients.Rate this question:
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- 27.
The muscle serving as a valve to prevent regurgitation of food from the intestine back into the stomach is known as the
- A.
Sphincter of Oddi
- B.
Ileocecal sphincter
- C.
Cardiac sphincter
- D.
Pyloric sphincter
Correct Answer
D. Pyloric spHincterExplanation
The pyloric sphincter is the correct answer. It is a muscle that serves as a valve between the stomach and the small intestine. Its main function is to regulate the flow of partially digested food from the stomach into the small intestine while preventing the backflow of food. This helps to ensure that the food moves through the digestive system in the correct direction and allows for proper digestion and absorption of nutrients.Rate this question:
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- 28.
The digestive passageway that begins at the pharynx and terminates in the stomach is the
- A.
Larynx
- B.
Trachea
- C.
Windpipe
- D.
Esophagus
Correct Answer
D. EsopHagusExplanation
The correct answer is the esophagus. The esophagus is the muscular tube that connects the pharynx (throat) to the stomach. It serves as a passageway for food and liquids to travel from the mouth to the stomach for digestion. The larynx, trachea, and windpipe are all part of the respiratory system, not the digestive system.Rate this question:
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- 29.
The point at which the esophagus penetrates the diaphragm is called the
- A.
Hiatus
- B.
Meatus
- C.
Sphincter
- D.
Fundus
Correct Answer
A. HiatusExplanation
The point at which the esophagus penetrates the diaphragm is called the hiatus. The hiatus is a natural opening in the diaphragm that allows the esophagus to pass through and connect to the stomach. It is important for the proper functioning of the digestive system, as it allows food and liquids to pass from the esophagus into the stomach.Rate this question:
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- 30.
Adenoids are also called
- A.
Palatine tonsils
- B.
Pharyngeal tonsils
- C.
Lingual tonsils
- D.
Uvula
Correct Answer
B. pHaryngeal tonsilsExplanation
The correct answer is pharyngeal tonsils. Adenoids are a type of tonsils located in the back of the throat, specifically in the pharynx. They are part of the immune system and help to fight off infections. Adenoids can become enlarged and cause symptoms such as difficulty breathing, snoring, and recurrent ear infections. Removing the adenoids may be necessary in some cases to alleviate these symptoms.Rate this question:
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- 31.
The function of the molar teeth is to
- A.
Tear and crush food
- B.
Crush and grind food
- C.
Cut food
- D.
Manipulate food
Correct Answer
B. Crush and grind foodExplanation
The molar teeth are located at the back of the mouth and have a flat surface with ridges, which are ideal for crushing and grinding food. This process helps to break down the food into smaller particles, making it easier to swallow and digest. The tearing and cutting of food are typically done by the incisors and canines, which are located at the front of the mouth. Therefore, the molar teeth specifically serve the purpose of crushing and grinding food.Rate this question:
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- 32.
Mumps occur in the
- A.
Sublingual glands
- B.
Submandibular glands
- C.
Parotid glands
- D.
Thyroid glands
Correct Answer
C. Parotid glandsExplanation
Mumps is a viral infection that primarily affects the salivary glands. The parotid glands, located on the sides of the face just below and in front of the ears, are most commonly affected. These glands produce saliva and are responsible for releasing it into the mouth. When the parotid glands are infected with the mumps virus, they become swollen and painful. This swelling can cause difficulty in swallowing and talking. Therefore, the correct answer is parotid glands.Rate this question:
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- 33.
The salivary glands located under the tongue are the
- A.
Subungual
- B.
Sublingual
- C.
Submaxillary
- D.
Parotid
Correct Answer
B. SublingualExplanation
The correct answer is sublingual. The sublingual glands are the salivary glands located under the tongue. They secrete saliva into the mouth through multiple ducts. These glands play a role in lubricating the oral cavity and aiding in the digestion of food.Rate this question:
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- 34.
The liver has
- A.
Two lobes
- B.
Three lobes
- C.
Four lobes
- D.
Five lobes
Correct Answer
A. Two lobesExplanation
The liver is an organ in the human body that is responsible for various functions such as detoxification, metabolism, and production of bile. It is divided into two main lobes, the right lobe and the left lobe. The right lobe is larger and occupies most of the liver's mass, while the left lobe is smaller and located on the left side of the body. This division into two lobes allows for efficient functioning and organization of the liver's different processes.Rate this question:
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- 35.
The glomerulus is a
- A.
Tiny coiled tube
- B.
Tubelike extension into the renal pelvis
- C.
Double walled cup
- D.
Cluster of capillaries
Correct Answer
D. Cluster of capillariesExplanation
The glomerulus is a cluster of capillaries. Capillaries are tiny blood vessels that have thin walls, allowing for the exchange of substances between the blood and surrounding tissues. In the case of the glomerulus, it is specifically a cluster of capillaries located in the kidney. This cluster plays a crucial role in the filtration of blood and the formation of urine. Blood enters the glomerulus under high pressure, and as it passes through the capillaries, waste products and excess water are filtered out and collected for excretion.Rate this question:
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- 36.
The tubes or cuplike extensions that project from the renal pelvis are called
- A.
Glomeruli
- B.
Convoluted tubules
- C.
Bowman's capsules
- D.
Calyces
Correct Answer
D. CalycesExplanation
Calyces are the tubes or cuplike extensions that project from the renal pelvis. They collect urine from the nephrons and transport it to the renal pelvis. Glomeruli are clusters of tiny blood vessels in the kidneys where filtration of blood takes place. Convoluted tubules are twisted tubes in the nephrons that reabsorb water and nutrients from the filtrate. Bowman's capsules are the cup-shaped structures in the nephrons that surround the glomeruli and collect the filtrate. Therefore, calyces is the correct answer as it specifically refers to the extensions that project from the renal pelvis.Rate this question:
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- 37.
Urine is transported along the ureters to the bladder by
- A.
Gravity flow
- B.
Contraction of the renal waves
- C.
Peristaltic waves
- D.
Muscle relaxation
Correct Answer
C. Peristaltic wavesExplanation
Peristaltic waves are rhythmic contractions of smooth muscles that help move substances through the body. In the case of urine transportation, peristaltic waves in the ureters help propel urine from the kidneys to the bladder. This wave-like motion creates a coordinated movement that pushes the urine forward, allowing it to flow against gravity and reach the bladder efficiently.Rate this question:
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- 38.
The smooth, triangular area at the bottom of the bladder that contains three openings is called the
- A.
Internal sphincter
- B.
Urinary meatus
- C.
Trigone
- D.
External os
Correct Answer
C. TrigoneExplanation
The smooth, triangular area at the bottom of the bladder that contains three openings is called the trigone. The trigone is an important anatomical landmark in the bladder as it helps to prevent urine reflux and aids in the emptying of the bladder. It is formed by the two ureteral openings and the urethral opening, and its smooth muscle fibers help to maintain continence by acting as a natural sphincter. The internal sphincter is a different structure located at the neck of the bladder, the urinary meatus is the external opening of the urethra, and the external os is a term used in relation to the cervix.Rate this question:
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- 39.
The kidneys ar positioned
- A.
Intraperitoneally
- B.
Retroperitoneally
- C.
In front of the parietal peritoneum
- D.
In back of the visceral peritoneum
Correct Answer
B. RetroperitoneallyExplanation
The correct answer is "retroperitoneally." The kidneys are located behind the parietal peritoneum, which is the outer layer of the peritoneum that lines the abdominal cavity. They are situated in a retroperitoneal position, meaning they are positioned outside the peritoneum and are covered by a layer of connective tissue called the renal fascia. This arrangement helps protect the kidneys from potential trauma and allows them to maintain a more stable position within the body.Rate this question:
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- 40.
The kidney structure that filters blood, returns useful substances to blood, and removes substances from blood that are not needed is the
- A.
Nephron
- B.
Glomerulus
- C.
Medulla
- D.
Cortex
Correct Answer
A. NepHronExplanation
The nephron is the correct answer because it is the functional unit of the kidney responsible for filtering blood and regulating the composition of urine. It consists of several components, including the glomerulus, which filters waste products and excess fluid from the blood, and the tubules, which reabsorb useful substances back into the bloodstream and remove waste products. The medulla and cortex are regions of the kidney where the nephrons are located, but they do not perform the specific functions described in the question.Rate this question:
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- 41.
Blood is supplied to the kidney by means of the renal artery, which arises from the
- A.
Thoracic aorta
- B.
Aortic arch
- C.
Abdominal aorta
- D.
Pulmonary artery
Correct Answer
C. Abdominal aortaExplanation
The renal artery supplies blood to the kidney, and it arises from the abdominal aorta. The abdominal aorta is the major artery that carries oxygenated blood from the heart to the lower part of the body, including the kidneys. Therefore, the correct answer is the abdominal aorta.Rate this question:
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- 42.
The indentation in the kidney through which all structures must pass as they enter or leave the kidney is the
- A.
Hilus
- B.
Renal pelvis
- C.
Renal capsule
- D.
Cortex
Correct Answer
A. HilusExplanation
The hilus is the indentation in the kidney through which all structures must pass as they enter or leave the kidney. It is the area where the renal artery, renal vein, and ureter connect to the kidney. This is an important anatomical feature as it allows for the passage of blood vessels and urine, enabling the kidney to perform its filtration and excretion functions effectively. The renal pelvis, renal capsule, and cortex are other parts of the kidney, but they do not specifically refer to the indentation through which structures enter or leave the kidney.Rate this question:
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- 43.
The outer layer of the kidney is known as the
- A.
Medulla
- B.
Glomerulus
- C.
Nephron
- D.
Cortex
Correct Answer
D. CortexExplanation
The outer layer of the kidney is known as the cortex. It is the region where the majority of the nephrons are located. The cortex plays a crucial role in the filtration of blood and the production of urine. It contains the glomerulus, which is a network of tiny blood vessels responsible for filtering waste products from the blood. The nephron, on the other hand, is the functional unit of the kidney responsible for filtering and reabsorbing substances from the blood. While both the glomerulus and nephron are important components of the kidney, they are not the outer layer.Rate this question:
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- 44.
The portion of the male urethra that passes through the pelvic floor is called the
- A.
Prostatic portion
- B.
Cavernous portion
- C.
Membranous portion
- D.
Penile portion
Correct Answer
C. Membranous portionExplanation
The male urethra is divided into four parts: prostatic, membranous, bulbar, and penile. The membranous portion refers to the part of the urethra that passes through the pelvic floor. This portion is located between the prostatic and bulbar portions. It is called the membranous portion because it is surrounded by a thick layer of smooth muscle, which gives it stability and support. This portion is the narrowest part of the male urethra and is prone to injury or obstruction.Rate this question:
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- 45.
A lack of voluntary control over micturition is called
- A.
Retention
- B.
Urination
- C.
Incontinence
- D.
Suppression
Correct Answer
C. IncontinenceExplanation
Incontinence refers to a lack of voluntary control over micturition, which means the inability to control or hold urine. This condition can result in involuntary leakage of urine, causing embarrassment and inconvenience for individuals. Retention, on the other hand, refers to the inability to empty the bladder completely. Urination is the process of releasing urine from the body, and suppression refers to the act of intentionally holding back or restraining the urge to urinate. Therefore, the correct answer is incontinence.Rate this question:
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- 46.
Urine empties from the bladder through a tube called the
- A.
Urethra
- B.
Urinary meatus
- C.
Urethral meatus
- D.
External urethral sphincter
Correct Answer
A. UrethraExplanation
The correct answer is urethra. The urethra is a tube that carries urine from the bladder to the outside of the body. It serves as a pathway for the elimination of urine during the process of urination. The other options mentioned, such as urinary meatus, urethral meatus, and external urethral sphincter, are not the correct terms for the tube through which urine empties from the bladder.Rate this question:
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- 47.
Fertilization occurs in the
- A.
Fallopian tubes
- B.
Uterus
- C.
Ovary
- D.
Gonads
Correct Answer
A. Fallopian tubesExplanation
Fertilization occurs in the fallopian tubes, where the sperm meets the egg. After sexual intercourse, the sperm travels through the cervix and into the fallopian tubes, where it can encounter and fertilize the egg if it is present. The fertilized egg then implants itself in the uterus for further development. The ovaries produce eggs, but fertilization does not occur within them. The gonads refer to the reproductive organs, which include the ovaries in females, but this term does not specifically indicate where fertilization occurs.Rate this question:
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- 48.
The perineum is
- A.
A thin tissue stretching across the vagina
- B.
The region anterior to the clitoris
- C.
The lower portion of the uterus
- D.
The area between the vagina and the anus
Correct Answer
D. The area between the vagina and the anusExplanation
The perineum is the area between the vagina and the anus. It is a small, diamond-shaped region of skin and muscle that provides support to the pelvic organs and helps control bowel and bladder functions. It is also an important area during childbirth, as it stretches to allow the baby to pass through the birth canal.Rate this question:
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- 49.
The small, sensitive structure of the female homologous to the male penis is the
- A.
Hymen
- B.
Clitoris
- C.
Perineum
- D.
Vestibule
Correct Answer
B. ClitorisExplanation
The correct answer is clitoris. The clitoris is a small, sensitive structure in the female reproductive system that is homologous to the male penis. It is located at the top of the vulva, above the urethra. The clitoris is highly sensitive to sexual stimulation and is an important organ for sexual pleasure in women.Rate this question:
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- 50.
Ova are swept into the fallopian tubes by small, fringelike extensions on the distal ends of the tubes called
- A.
Ostium
- B.
Fimbriae
- C.
Oviducts
- D.
Stroma
Correct Answer
B. FimbriaeExplanation
The correct answer is fimbriae. Fimbriae are small, fringelike extensions located at the distal ends of the fallopian tubes. They help to sweep the ova (eggs) into the fallopian tubes, where fertilization can occur.Rate this question:
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Mar 22, 2023Quiz Edited by
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Oct 04, 2012Quiz Created by
Tigger28384
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