The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
Positive feedback mechanisms tend to increase the original
stimulus.
A.
True
B.
False
Correct Answer
A. True
Explanation Positive feedback mechanisms are processes in which the response to a stimulus amplifies or increases the original stimulus. This means that when a positive feedback mechanism is activated, it will continue to enhance the stimulus, leading to even greater effects. Therefore, the statement that positive feedback mechanisms tend to increase the original stimulus is true.
Rate this question:
2.
Imaging is useful in discovering obstructed blood supplies
in organs and tissues.
A.
True
B.
False
Correct Answer
A. True
Explanation Imaging techniques such as MRI, CT scan, and ultrasound can provide detailed images of organs and tissues, allowing doctors to identify any blockages or obstructions in blood supplies. By visualizing the blood flow, imaging can help diagnose conditions such as blood clots, arterial stenosis, or tumors that may be causing a decrease in blood supply to specific areas. This information is crucial for determining the appropriate treatment plan and ensuring adequate blood flow to the affected organs or tissues.
Rate this question:
3.
The anatomical position
means the body is standing at attention with the palms facing forward and the
thumbs pointing away from the body.
A.
True
B.
False
Correct Answer
A. True
Explanation The anatomical position refers to the standard position in which the body is standing upright, with the arms at the sides and the palms facing forward. In this position, the thumbs are pointing away from the body. Therefore, the statement is true.
Rate this question:
4.
The elbow is proximal to
the shoulder.
A.
True
B.
False
Correct Answer
B. False
Explanation The elbow is distal to the shoulder.
Rate this question:
5.
The serous membrane that lines the peritoneal cavity wall
is called visceral peritoneum.
A.
True
B.
False
Correct Answer
B. False
Explanation The correct answer is False. The serous membrane that lines the peritoneal cavity wall is actually called parietal peritoneum, not visceral peritoneum. The visceral peritoneum covers the organs within the peritoneal cavity.
Rate this question:
6.
A major function of serous membranes is to decrease
friction.
A.
True
B.
False
Correct Answer
A. True
Explanation Serous membranes are thin, slippery membranes that line certain body cavities and cover the organs within those cavities. One of their main functions is to reduce friction between organs and body cavities, allowing them to move smoothly against each other. This helps to prevent damage or irritation to the organs and ensures efficient movement. Therefore, the statement that a major function of serous membranes is to decrease friction is true.
Rate this question:
7.
The right hypochondriac
region contains the majority of the stomach
A.
True
B.
False
Correct Answer
B. False
Explanation The right hypochondriac region does not contain the majority of the stomach. The stomach is primarily located in the left upper quadrant of the abdomen, known as the left hypochondriac region. Therefore, the statement is false.
Rate this question:
8.
Lungs carry out an excretory function.
A.
True
B.
False
Correct Answer
A. True
Explanation The statement is true because lungs play a role in excreting waste products from the body. When we breathe, we inhale oxygen and exhale carbon dioxide as a waste product. This process of removing carbon dioxide from the body is a form of excretion. Additionally, the lungs also help in removing other waste products such as water vapor and small amounts of other gases. Therefore, lungs do carry out an excretory function.
Rate this question:
9.
Embryology concerns the structural changes that occur in an
individual from conception through old age.
A.
True
B.
False
Correct Answer
B. False
Explanation Embryology specifically focuses on the developmental changes that occur in an individual from fertilization to the end of the embryonic stage, which is typically around 8 weeks after conception. It does not cover the structural changes that occur throughout old age. Therefore, the statement is false.
Rate this question:
10.
A tissue consists of groups of similar cells that have a
common function.
A.
True
B.
False
Correct Answer
A. True
Explanation This statement is true because a tissue is indeed made up of groups of similar cells that work together to perform a specific function. These cells are organized in a way that allows them to carry out their specific roles efficiently.
Rate this question:
11.
It is important for any organism to maintain its
boundaries, so that its internal environment remains distinct from the external
environment surrounding it.
A.
True
B.
False
Correct Answer
A. True
Explanation Maintaining boundaries is important for any organism to ensure that its internal environment remains separate and distinct from the external environment. This is necessary for the organism to function properly and maintain homeostasis. Without maintaining boundaries, the organism may be susceptible to harmful substances or fluctuations in the external environment that could disrupt its internal processes. Therefore, it is true that it is important for any organism to maintain its boundaries.
Rate this question:
12.
Without some sort of negative feedback mechanism, it would
be impossible to keep our body chemistry in balance.
A.
True
B.
False
Correct Answer
A. True
Explanation The statement is true because negative feedback mechanisms play a crucial role in maintaining homeostasis in our body. These mechanisms help regulate various physiological processes, such as body temperature, blood pressure, and hormone levels, by counteracting any deviations from the desired set point. Without negative feedback, our body chemistry would not be able to maintain the necessary balance required for optimal functioning.
Rate this question:
13.
Regardless of the variable being regulated, all homeostatic
control mechanisms have at least three interdependent components.
A.
True
B.
False
Correct Answer
A. True
Explanation Homeostatic control mechanisms are designed to maintain a stable internal environment in the body. These mechanisms involve three interdependent components: a receptor, a control center, and an effector. The receptor detects changes in the variable being regulated, the control center receives information from the receptor and determines the appropriate response, and the effector carries out the response to restore the variable to its set point. Therefore, regardless of the variable being regulated, all homeostatic control mechanisms have these three components.
Rate this question:
14.
In a negative feedback mechanism, ADH is the equivalent to
the "thermostat" in your home heating system.
A.
True
B.
False
Correct Answer
B. False
Explanation ADH (antidiuretic hormone) is not the equivalent to the "thermostat" in a home heating system. In a negative feedback mechanism, ADH acts as a regulator of water balance in the body by controlling the reabsorption of water in the kidneys. The "thermostat" in a home heating system, on the other hand, regulates the temperature by turning the heating on or off based on the desired temperature setting. Therefore, the statement is false.
Rate this question:
15.
The epigastric region is located superior to the umbilical
region.
A.
True
B.
False
Correct Answer
A. True
Explanation The statement is true because the epigastric region is indeed located above the umbilical region. In anatomical terms, the epigastric region refers to the area of the abdomen that is located above the umbilical region, which is the area around the belly button. This positioning is commonly used in medical and anatomical references to describe the location of organs or structures within the abdomen. Therefore, the statement is correct.
Rate this question:
16.
Histology would be best
defined as a study of________.
A.
Cells
B.
Tissues
C.
Cell chemistry
D.
The gross structures of the body
Correct Answer
B. Tissues
Explanation Histology is the study of tissues, which makes it the best definition for histology. It involves examining the microscopic structure of tissues and how they are organized to form organs and systems in the body. The study of cells and cell chemistry are more specific branches of biology, while the gross structures of the body are studied in anatomy. Therefore, tissues encompass a broader scope and accurately define histology.
Rate this question:
17.
The study of the heart may
incorporate many aspects of anatomy but as a whole you would say it is
__________ anatomy.
A.
Microscopic
B.
Gross
C.
Developmental
D.
Systemic
Correct Answer
B. Gross
Explanation The study of the heart may incorporate many aspects of anatomy, such as the structure and function of its various parts. However, when considering the study of the heart as a whole, it is referred to as gross anatomy. Gross anatomy focuses on the examination of structures that are visible to the naked eye, without the need for magnification or microscopic analysis.
Rate this question:
18.
An increased rate of
breathing as a result of an increased buildup of carbon dioxide in the
bloodstream would be best described as an example of ________.
A.
Maintaining boundaries
B.
Excretion of metabolic waste
C.
Responsiveness
D.
Metabolism
Correct Answer
B. Excretion of metabolic waste
Explanation An increased rate of breathing as a result of an increased buildup of carbon dioxide in the bloodstream can be best described as an example of excretion of metabolic waste. Carbon dioxide is a waste product of cellular respiration and needs to be removed from the body. The increased breathing rate helps to eliminate the excess carbon dioxide by exhaling it out of the body.
Rate this question:
19.
Normal body temperature is ________ degrees centigrade.
A.
98
B.
68
C.
47
D.
37
Correct Answer
D. 37
Explanation The normal body temperature is 37 degrees centigrade. This is the average temperature that is maintained by the human body in order to function properly. Deviations from this temperature can indicate illness or other health conditions.
Rate this question:
20.
If you consider your home air conditioner in terms of
homeostasis then the wall thermostat would be the ________.
A.
Control center
B.
Receptor
C.
Effector
D.
Variable
Correct Answer
A. Control center
Explanation The wall thermostat in a home air conditioner acts as the control center. It receives information from the environment (such as the current temperature) and compares it to the desired temperature set by the user. Based on this comparison, it sends signals to the air conditioner to either turn on or off in order to maintain the desired temperature. The control center plays a crucial role in maintaining homeostasis by regulating the temperature within the desired range.
Rate this question:
21.
The main, general purpose of negative feedback is ________.
A.
To control all body system tissues
B.
To maintain homeostasis
C.
To keep the body's sugar high
D.
To regulate excretion
Correct Answer
B. To maintain homeostasis
Explanation Negative feedback is a regulatory mechanism that helps maintain homeostasis in the body. It works by detecting any changes from the desired set point and initiating responses to counteract these changes, bringing the body back to a balanced state. This feedback loop helps regulate various physiological processes such as body temperature, blood pressure, and hormone levels, ensuring that they remain within a narrow range for optimal functioning.
Rate this question:
22.
________ is the specific
name for the hip region.
A.
Manus
B.
Inguinal
C.
Pedal
D.
Coxal
Correct Answer
D. Coxal
Explanation Coxal is the specific name for the hip region. The term "coxal" refers to the bones of the hip, including the ilium, ischium, and pubis. These bones form the pelvic girdle and are responsible for connecting the lower limbs to the axial skeleton. Therefore, coxal is the correct answer as it accurately describes the anatomical region being referred to.
Rate this question:
23.
An oblique cut is one that ________.
A.
Is cut horizontal right and left
B.
Is cut diagonally between the vertical and horizontal
C.
Is cut vertical right and left
D.
Is cut perpendicular to vertical and horizontal
Correct Answer
B. Is cut diagonally between the vertical and horizontal
Explanation An oblique cut is a cut that is made at an angle between the vertical and horizontal directions. This means that it is not cut horizontally or vertically, but instead at a diagonal angle.
Rate this question:
24.
The heart lies in the ________ cavity.
A.
Superior mediastinal
B.
Pleural
C.
Dorsal
D.
Pericardial
Correct Answer
D. Pericardial
Explanation The heart lies in the pericardial cavity. The pericardial cavity is a small space located between the two layers of the pericardium, which is a protective sac surrounding the heart. It contains a small amount of fluid that helps reduce friction as the heart beats. The pericardial cavity provides a secure and enclosed environment for the heart, protecting it from external forces and allowing it to function properly.
Rate this question:
25.
The cavities housing the eyes are called __________
cavities.
A.
Frontal
B.
Cranial
C.
Nasal
D.
Orbital
Correct Answer
D. Orbital
Explanation The correct answer is "orbital." The cavities housing the eyes are specifically referred to as orbital cavities.
Rate this question:
26.
A structure that is composed of two or more tissues would
be ________.
A.
A complex tissue
B.
An organ system
C.
An organ
D.
A complex cell
Correct Answer
C. An organ
Explanation A structure that is composed of two or more tissues would be an organ. Organs are made up of different types of tissues that work together to perform specific functions in the body.
Rate this question:
27.
________ cavities are
spaces within joints.
A.
Nasal
B.
Synovial
C.
Orbital
D.
Oral
Correct Answer
B. Synovial
Explanation Synovial cavities are spaces within joints. These cavities are filled with synovial fluid, which helps to lubricate and cushion the joints, allowing for smooth movement. The synovial cavities are found in various joints throughout the body, such as the knee, elbow, and shoulder joints.
Rate this question:
28.
Which of the following would not be functional characteristics of life?
A.
Movement
B.
Responsiveness to external stimuli
C.
Maintenance of boundaries
D.
Decay
Correct Answer
D. Decay
Explanation Decay is not considered a functional characteristic of life because it is the process of breaking down and decomposing, which is typically associated with non-living matter. In contrast, movement, responsiveness to external stimuli, and maintenance of boundaries are all essential functions of living organisms. Movement allows organisms to interact with their environment, responsiveness enables them to react to changes in their surroundings, and maintaining boundaries helps to separate the internal environment from the external environment. Decay, on the other hand, is a process that occurs after death and is associated with the breakdown of organic matter.
Rate this question:
29.
________ means toward or at
the back of the body, behind.
A.
Anterior
B.
Lateral
C.
Distal
D.
Dorsal
Correct Answer
D. Dorsal
Explanation Dorsal means toward or at the back of the body, behind. It is the anatomical term used to describe the position or direction that is opposite to ventral, which means toward or at the front of the body. In other words, dorsal refers to the back side of an organism or body part.
Rate this question:
30.
The single most abundant chemical substance of the body,
accounting for 60 to 80% of body weight, is ________.
A.
Oxygen
B.
Protein
C.
Water
D.
Hydrogen
Correct Answer
C. Water
Explanation Water is the correct answer because it is the most abundant chemical substance in the body, accounting for 60 to 80% of body weight. It is essential for various biological processes, including digestion, transportation of nutrients, regulation of body temperature, and waste removal. Without water, the body cannot function properly, making it a crucial component for maintaining overall health and well-being.
Rate this question:
31.
The posterior side of the patella would be called ________.
A.
Sural
B.
Crural
C.
Antecubital
D.
Popliteal
Correct Answer
D. Popliteal
Explanation The posterior side of the patella is called the popliteal.
Rate this question:
32.
Which of the following statements is true concerning
feedback mechanisms?
A.
Positive feedback mechanisms always result in excessive damage to the host.
B.
Negative feedback mechanisms tend to increase the original stimulus.
C.
Negative feedback mechanisms work to prevent sudden severe changes within the body.
D.
Blood glucose levels are regulated by positive feedback mechanisms.
Correct Answer
C. Negative feedback mechanisms work to prevent sudden severe changes within the body.
Explanation Negative feedback mechanisms work to prevent sudden severe changes within the body. This means that when there is a deviation from the normal range or set point, the negative feedback mechanism will act to bring the body back to its original state. It does this by counteracting the original stimulus and restoring balance. This is important for maintaining homeostasis and ensuring that the body functions properly.
Rate this question:
33.
The anatomical position is characterized by all of the
following except ________.
A.
Body erect
B.
Arms at sides
C.
Palms turned posteriorly
D.
Thumbs pointed laterally
Correct Answer
C. Palms turned posteriorly
Explanation The anatomical position is a standardized position used in anatomy to describe the body's orientation. It includes the body being erect, arms at the sides, and thumbs pointed laterally. However, the palms are not turned posteriorly in the anatomical position. Instead, they are turned anteriorly, facing forward.
Rate this question:
34.
A good example of a positive feedback mechanism would be
________.
A.
Body temperature regulation
B.
Regulating glucose levels in the blood
C.
Enhancement of labor contractions
D.
Blood calcium level regulation
Correct Answer
C. Enhancement of labor contractions
Explanation Enhancement of labor contractions is a good example of a positive feedback mechanism because it involves a cycle where the initial stimulus (contractions) leads to an increase in a certain response (more contractions), which in turn intensifies the initial stimulus. This positive feedback loop continues until the desired outcome is achieved (the birth of the baby).
Rate this question:
35.
A parasagittal plane is ________.
A.
A transverse cut just above the knees
B.
Two cuts dividing the body into left and right halves
C.
Any sagittal plane except the median
D.
Any cut dividing the body into anterior and posterior
Correct Answer
C. Any sagittal plane except the median
Explanation A parasagittal plane refers to any sagittal plane that is not the median plane. Sagittal planes divide the body into left and right halves, and the median plane specifically divides the body into equal left and right halves. Therefore, any sagittal plane that is not the median plane would be considered a parasagittal plane.
Rate this question:
36.
Which of the following organs or structures would be found
in the left iliac region?
A.
Appendix
B.
Stomach
C.
Liver
D.
Intestines
Correct Answer
D. Intestines
Explanation The left iliac region is located in the lower left quadrant of the abdomen. The intestines, specifically the descending colon and sigmoid colon, are found in this region. The appendix is typically located in the right lower quadrant, the stomach is located in the upper left quadrant, and the liver is located in the upper right quadrant. Therefore, the correct answer is intestines.
Rate this question:
37.
The parietal pleural would represent a serous membrane
________.
A.
Covering individual lungs
B.
Lining the thoracic cavity
C.
Covering the heart
D.
Lining the abdominal cavity
Correct Answer
B. Lining the thoracic cavity
Explanation The parietal pleura is a serous membrane that lines the thoracic cavity. Serous membranes are thin, double-layered membranes that line body cavities and cover organs. In the case of the parietal pleura, it lines the walls of the thoracic cavity, while the visceral pleura covers the surface of the lungs. Together, these membranes create a fluid-filled space called the pleural cavity, which helps reduce friction during breathing.
Rate this question:
38.
Which one of the following systems responds to
environmental stimuli
A.
Endocrine
B.
Lymphatic
C.
Immune
D.
Nervous
Correct Answer
D. Nervous
Explanation The nervous system is responsible for responding to environmental stimuli. It receives information from the environment through sensory organs and processes this information to produce an appropriate response. This response can be in the form of muscle contractions, glandular secretions, or changes in behavior. The nervous system allows organisms to detect and respond to changes in their surroundings, helping them to adapt and survive in their environment.
Rate this question:
39.
Choose the anatomical topic and definition that is not correctly matched.
A.
Gross anatomy: study of structures visible to the eye.
B.
Microscopic anatomy: study of structures too small to be seen by the naked eye.
C.
Cytology: study of the structures in a particular region.
D.
Embryology: study of the changes in an individual from conception to birth.
Correct Answer
C. Cytology: study of the structures in a particular region.
Explanation Cytology is not the study of structures in a particular region, but rather the study of cells and their structures.
Rate this question:
40.
Homeostasis is the
condition in which the body maintains ________.
A.
The lowest possible energy usage
B.
A relatively stable internal environment, within limits
C.
A static state with no deviation from preset points
D.
A dynamic state within an unlimited range
Correct Answer
B. A relatively stable internal environment, within limits
Explanation Homeostasis refers to the body's ability to maintain a relatively stable internal environment within certain limits. This means that the body is constantly working to regulate various physiological processes such as temperature, blood pressure, and pH levels to ensure that they stay within a range that is optimal for the body to function properly. This stability is important for the body to maintain its overall health and to ensure that its cells and organs can function optimally.
Rate this question:
41.
The lungs are located in the following cavities ________.
A.
Pleural, ventral, and thoracic
B.
Mediastinum, thoracic, and ventral
C.
Pleural, dorsal, and abdominal
D.
Pericardial, ventral, and thoracic
Correct Answer
A. Pleural, ventral, and thoracic
Explanation The lungs are located in the pleural cavity, which is a space between the two layers of the pleura (a thin membrane that surrounds the lungs). The pleural cavity is located in the thoracic cavity, which is the chest cavity. The thoracic cavity is also considered ventral, as it is located towards the front of the body. Therefore, the correct answer is pleural, ventral, and thoracic.
Rate this question:
42.
Choose the following statement that is not completely correct regarding serous membranes.
A.
Serosa are very thin, double-layered structures.
B.
Serous membranes are divided into parietal and visceral membranes with a potential space between the two.
C.
Visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls of the heart.
D.
Serous membranes secrete a watery lubricating fluid.
Correct Answer
C. Visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls of the heart.
Explanation The correct statement is not completely correct because it mistakenly states that the visceral pericardium covers the surface of the heart, when in fact it is the parietal pericardium that covers the surface of the heart, while the visceral pericardium lines the walls of the heart.
Rate this question:
43.
Place the following in correct sequence from simplest to
most complex:
1. molecules
2. atoms
3. tissues
4. cells
5. organ
A.
A)
1-2-3-4-5
B.
)
2-1-4-3-5
C.
2-1-3-4-5
D.
1-2-4-3-5
Correct Answer
B. )
2-1-4-3-5
Explanation The correct sequence from simplest to most complex is atoms (2), molecules (1), cells (4), tissues (3), and organ (5). Atoms are the building blocks of molecules, which then form cells. Cells combine to form tissues, and tissues work together to make up organs.
Rate this question:
44.
Which of the following
imaging devices would best localize a tumor in a person's brain?
A.
X ray
B.
DSA
C.
PET
D.
MRI
Correct Answer
D. MRI
Explanation An MRI (Magnetic Resonance Imaging) device would best localize a tumor in a person's brain. MRI uses strong magnetic fields and radio waves to generate detailed images of the brain, allowing for clear visualization of tumors and other abnormalities. X-ray and DSA (Digital Subtraction Angiography) are not ideal for imaging the brain, as they primarily capture images of bones and blood vessels respectively. PET (Positron Emission Tomography) can detect metabolic activity in the brain but may not provide as precise anatomical details as an MRI.
Rate this question:
45.
Which of these is not
part of the dorsal cavity?
A.
Cranial cavity
B.
Thoracic cavity
C.
Spinal cord
D.
Vertebral cavity
Correct Answer
B. Thoracic cavity
Explanation The thoracic cavity is not part of the dorsal cavity. The dorsal cavity is located along the posterior (back) side of the body and includes the cranial cavity, which houses the brain, and the vertebral cavity, which houses the spinal cord. The thoracic cavity, on the other hand, is located in the anterior (front) side of the body and contains the heart, lungs, and other organs involved in respiration.
Rate this question:
46.
The stomach is located in which abdominopelvic quadrant?
A.
Right upper
B.
Right lower
C.
Left upper
D.
Left lower
Correct Answer
C. Left upper
Explanation The stomach is located in the left upper abdominopelvic quadrant. This is because the stomach is situated in the upper part of the abdomen, towards the left side of the body. The left upper quadrant is also home to other organs such as the spleen, left kidney, and parts of the liver and intestines.
Rate this question:
47.
Which of the following statements is most correct of
homeostatic imbalance?
A.
It is considered the cause of most diseases.
B.
The internal environment is becoming more stable.
C.
Positive feedback mechanisms are overwhelmed.
D.
Negative feedback mechanisms are functioning normally.
Correct Answer
A. It is considered the cause of most diseases.
Explanation Homeostatic imbalance refers to a disruption in the body's internal balance, leading to various diseases. This means that the correct statement is "It is considered the cause of most diseases." This implies that when the body is unable to maintain its internal equilibrium, it becomes susceptible to developing illnesses and health conditions.
Rate this question:
48.
Subdivisions of anatomy include ________.
A.
Gross, macroscopic, visual, and microscopic
B.
Gross, regional, dissection, and surface
C.
Regional, surface, visual, and microscopic
D.
Gross, regional, systemic, and surface
Correct Answer
D. Gross, regional, systemic, and surface
Explanation The subdivisions of anatomy include gross, regional, systemic, and surface. Gross anatomy refers to the study of structures that can be seen with the naked eye. Regional anatomy focuses on specific regions of the body. Systemic anatomy studies the body by systems, such as the cardiovascular or respiratory system. Surface anatomy examines the external features of the body.
Rate this question:
49.
The term pollex
refers to the ________.
A.
Great toe
B.
Calf
C.
Fingers
D.
Thumb
Correct Answer
D. Thumb
Explanation The term "pollex" specifically refers to the thumb. The thumb is the first digit of the hand and is opposable to the other fingers, allowing for grasping and manipulating objects with precision.
Rate this question:
50.
The dorsal body cavity is the site of which of the
following?
A.
Intestines
B.
Brain
C.
Lungs
D.
Liver
Correct Answer
B. Brain
Explanation The dorsal body cavity is the site of the brain. This cavity is located along the posterior (dorsal) side of the body and is protected by the bones of the skull and vertebral column. The brain is a vital organ that controls various functions of the body, including thoughts, movement, and sensory perception. It is housed within the dorsal body cavity to ensure its protection and proper functioning.
Rate this question:
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.