Anatomy & Physiology - 2
Questions pertaining to the advancement in rate for Hospital Corpsman. Ensure you choose the answer that best represents the question.
- 1.
Whats gives muscle a certain firmness or a continued state of partial contraction?
- A.
Isometric
- B.
Tonicity
- C.
Contractibility
- D.
Mycin
Correct Answer
B. TonicityExplanation
Tonicity refers to the state of tension or firmness in muscles. It is responsible for maintaining a certain level of contraction in muscles even when they are at rest. This partial contraction helps muscles to be ready for immediate action and maintain their shape and form. Tonicity is regulated by the nervous system and plays a crucial role in posture and stability.Rate this question:
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- 2.
What muscle happens to be the longest muscle in the body?
- A.
Brachii Femoris
- B.
Tibialis Anterior
- C.
Sartorius
- D.
Gastrocnemius
Correct Answer
C. SartoriusExplanation
The correct answer is Sartorius. The Sartorius muscle is the longest muscle in the human body. It is a long, thin muscle that runs from the hip to the knee. It helps to flex and rotate the hip and knee joints.Rate this question:
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- 3.
What muscle is the site of choice for intramuscular injections greater than 1cc?
- A.
Quadricep
- B.
Tricep
- C.
Deltoid
- D.
Gluteus Maximus
Correct Answer
D. Gluteus MaximusExplanation
The gluteus maximus is the largest muscle in the body and is located in the buttocks. It is a common site for intramuscular injections greater than 1cc because it has a large muscle mass and can accommodate larger volumes of medication. Additionally, the gluteus maximus has a thick layer of subcutaneous fat which helps to cushion the injection and reduce discomfort.Rate this question:
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- 4.
The clear, pale, yellow liquid portion of blood after coagulation is?
- A.
Plasma
- B.
Blood Serum
- C.
Hemoglobin
- D.
Erythrocyte
Correct Answer
B. Blood SerumExplanation
Blood serum is the clear, pale, yellow liquid portion of blood that remains after coagulation. It is obtained by allowing blood to clot and then separating the liquid portion from the solid components. Blood serum does not contain clotting factors, as they are removed during the coagulation process. It contains various proteins, electrolytes, hormones, antibodies, and waste products. Blood serum is often used in medical tests to analyze the levels of different substances in the body, such as glucose, cholesterol, and liver enzymes.Rate this question:
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- 5.
Which of the below is not true concerning Red Blood Cells(Erythrocytes)?
- A.
Carbon dioxide is picked up by the cell and exchanged vis the lungs
- B.
Normal cell count is higher in women than men
- C.
The cell will live anywhere from 100 to 120 days in the body
- D.
The spleen is the "graveyard" for older cells
Correct Answer
B. Normal cell count is higher in women than menExplanation
The statement that "Normal cell count is higher in women than men" is not true concerning Red Blood Cells (Erythrocytes).Rate this question:
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- 6.
What is the normal white blood cell count per cubic millimeter of blood?
- A.
6,000 to 8,000
- B.
15,000 to 20,000
- C.
250,000
- D.
4.5 to 5 million
Correct Answer
A. 6,000 to 8,000Explanation
The normal white blood cell count per cubic millimeter of blood is 6,000 to 8,000. This range is considered to be within the normal limits for a healthy individual. White blood cells are an important part of the immune system and help to fight off infections and diseases. If the white blood cell count is too high or too low, it can indicate an underlying health condition.Rate this question:
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- 7.
The heart is enclosed in a membraneous sac called the?
- A.
Epicardium
- B.
Myocardium
- C.
Pericardium
- D.
Endocardium
Correct Answer
C. PericardiumExplanation
The heart is enclosed in a membranous sac called the pericardium. The pericardium is a double-layered sac that surrounds and protects the heart. It consists of two layers, the fibrous pericardium, which is the outer layer, and the serous pericardium, which is the inner layer. The pericardium helps to prevent the heart from overexpanding, provides lubrication for the heart to move within the chest, and acts as a barrier against infection and inflammation.Rate this question:
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- 8.
What part of the heart receives deoxygenated blood from the body via the Superior and Inferior Vena Cava?
- A.
Left Atrium
- B.
Right Atrium
- C.
Left Ventricle
- D.
Right Ventricle
Correct Answer
B. Right AtriumExplanation
The correct answer is Right Atrium. The right atrium receives deoxygenated blood from the body via the Superior and Inferior Vena Cava.Rate this question:
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- 9.
The relaxation phase of the blood pressure is called?
- A.
Systole
- B.
Dyastole
- C.
Pulse Pressure
- D.
Median Pressure
Correct Answer
B. DyastoleExplanation
The relaxation phase of the blood pressure is called diastole. During diastole, the heart muscles relax, allowing the chambers of the heart to fill with blood. This is the phase when the blood pressure is at its lowest point. Systole, on the other hand, is the contraction phase of the heart when blood is pumped out of the heart. Pulse pressure refers to the difference between the systolic and diastolic blood pressure, while median pressure is not a term used to describe the phases of blood pressure.Rate this question:
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- 10.
What venous system has the only veins in the bdoy that carry freshly oxygenated blood?
- A.
Hepatic
- B.
Systemic
- C.
Portal
- D.
Pulmonic
Correct Answer
D. PulmonicExplanation
The pulmonic venous system is the only venous system in the body that carries freshly oxygenated blood. This system carries blood from the lungs back to the heart, specifically from the pulmonary veins to the left atrium. The other options mentioned in the question, such as the hepatic, systemic, and portal venous systems, do not carry freshly oxygenated blood. The hepatic venous system carries blood from the liver to the inferior vena cava, the systemic venous system carries deoxygenated blood from the body back to the heart, and the portal venous system carries blood from the digestive organs to the liver.Rate this question:
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- 11.
What vein is most commonly used for intraveous blood draws ad infusions?
- A.
Medical Cubital
- B.
Great Sapphenous
- C.
Cephalic
- D.
Bachial
Correct Answer
A. Medical CubitalExplanation
The correct answer is Medical Cubital. The medical cubital vein, also known as the median cubital vein, is the most commonly used vein for intravenous blood draws and infusions. It is located in the antecubital fossa, which is the front part of the elbow. This vein is preferred because it is large, easily accessible, and less prone to damage or complications compared to other veins in the arm. It is often used for procedures such as blood tests, IV medications, and fluid administration.Rate this question:
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- 12.
What is another name for the voice box?
- A.
Larynx
- B.
Pharynx
- C.
Vocal Cords
- D.
Trachea
Correct Answer
A. LarynxExplanation
The larynx is another name for the voice box. It is a part of the respiratory system located in the throat. It contains the vocal cords, which are responsible for producing sound and enabling speech. The larynx also plays a crucial role in protecting the airway during swallowing, preventing food and liquids from entering the lungs.Rate this question:
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- 13.
What is dome shaped and separated the thoraci and Abdominal cavaities?
- A.
Mediastinum
- B.
Intercostal Muscles
- C.
Diaphragm
- D.
Lungs
Correct Answer
C. DiapHragmExplanation
The diaphragm is a dome-shaped muscle that separates the thoracic and abdominal cavities. It plays a crucial role in respiration by contracting and flattening when we inhale, allowing the lungs to expand and fill with air. When we exhale, the diaphragm relaxes and returns to its dome shape, pushing the air out of the lungs. Therefore, the diaphragm is responsible for the separation and movement of air between the thoracic and abdominal cavities.Rate this question:
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- 14.
The amount of air left in the lungs after forec expiration is about 1200 cc and is known as?
- A.
Inhaled Air
- B.
Exhaled Air
- C.
Inspiratory Reserve Volume
- D.
Residual Air
Correct Answer
D. Residual AirExplanation
Residual air refers to the amount of air that remains in the lungs after forceful expiration. This residual air is approximately 1200 cc. It is important to note that residual air is not easily expelled from the lungs and is necessary to maintain lung function and keep the alveoli open.Rate this question:
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- 15.
What type of respirations increase with forec and frequency up to a certain point, the decrease until they cease altogether?
- A.
Eupnea
- B.
Rales
- C.
Cheyene-Stokes
- D.
Dyspnea
Correct Answer
C. Cheyene-StokesExplanation
Cheyene-Stokes respirations are characterized by a pattern of increasing depth and frequency of breaths, followed by a gradual decrease until breathing temporarily stops. This pattern repeats itself in a cycle. Cheyene-Stokes respirations are often seen in individuals with severe heart failure or brain damage.Rate this question:
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Mar 22, 2023Quiz Edited by
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Feb 11, 2009Quiz Created by
Corpsman