NCCT ECG Certification Review - Part 2 (Anatomy & Physiology)

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     A sinus rhythm at a rate of 110 would be considered sinus

    • A. tachycardia
    • B. arrhythmia
    • C. bradycardia
    • D. rhythm
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About This Quiz

From Official Review Book National Certified ECG Technician
Part 2
Anatomy & Physiology (AN)

NCCT ECG Certification Review - Part 2 (Anatomy & Physiology) - Quiz

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  • 2. 

    10. A sinus rhythm at a rate of 58 would be considered

    • A. borderline sinus tachycardia

    • B. borderline sinus bradycarclia

    • C. sinus arrhythmia

    • D. sinus rhythm

    Correct Answer
    A. B. borderline sinus bradycarclia
    Explanation
    A sinus rhythm refers to the normal electrical activity of the heart, where the heartbeats originate from the sinus node. A heart rate of 58 is considered to be on the lower side of the normal range (60-100 beats per minute). Sinus bradycardia refers to a sinus rhythm with a heart rate below 60 beats per minute. Therefore, a sinus rhythm at a rate of 58 would be considered borderline sinus bradycardia.

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  • 3. 

    The SA node is also called the

    • A. network

    • B. pacemaker

    • C. conductor

    • D. sensor

    Correct Answer
    A. B. pacemaker
    Explanation
    The SA node, or sinoatrial node, is often referred to as the pacemaker of the heart. This is because it is responsible for initiating the electrical impulses that regulate the heart's rhythm and coordinate its contractions. The SA node is located in the right atrium of the heart and acts as the natural pacemaker, setting the pace for the rest of the heart.

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  • 4. 

    11.         The average size of an adult heart is

    • A. the size of a walnut

    • B. slightly larger than a golf bail

    • C. slightly larger than amaifs fist

    • D. the size of a soccer ball

    Correct Answer
    A. C. slightly larger than amaifs fist
    Explanation
    The correct answer is c. slightly larger than a maifs fist. This answer suggests that the average size of an adult heart is slightly larger than the size of a person's fist. This is a commonly used comparison to help visualize the size of the heart.

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  • 5. 

    A sinus rhythm rate of 55 would be considered sinus

    • A. tachycardia

    • B. arrhythmia

    • C. bradyeardia

    • D. rhythm

    Correct Answer
    A. C. bradyeardia
    Explanation
    A sinus rhythm rate of 55 is considered bradycardia because it is slower than the normal range of 60-100 beats per minute. Bradycardia refers to a slow heart rate, which can be caused by various factors such as certain medications, underlying medical conditions, or a naturally low resting heart rate.

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  • 6. 

    The second sound heard when taking blood pressure is the                 pressure.

    • A. venous

    • B. diastolic

    • C. systolic

    • D. carotid

    Correct Answer
    A. B. diastolic
    Explanation
    The second sound heard when taking blood pressure is the diastolic pressure. This is the pressure in the arteries when the heart is at rest between beats. The first sound heard is the systolic pressure, which is the pressure in the arteries when the heart contracts. The venous pressure refers to the pressure in the veins, and the carotid refers to the carotid artery in the neck.

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  • 7. 

        16. Which of these arteries is the largest?

    • A. Popliteal

    • B. Femoral

    • C. Subclavian

    • D. Aorta

    Correct Answer
    A. D. Aorta
    Explanation
    The aorta is the largest artery in the body. It originates from the left ventricle of the heart and carries oxygenated blood to all parts of the body. It is responsible for supplying blood to the organs, tissues, and cells, ensuring that they receive the necessary nutrients and oxygen for their proper functioning. The aorta is divided into different segments, including the ascending aorta, aortic arch, and descending aorta, which further branch out into smaller arteries throughout the body.

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  • 8. 

    A valve consisting of three triangular segments that are located between the upper and lower chambers of the sight side of the heart is called the                      valve.

    • A. tricuspid

    • B. sInai

    • C. aortic

    • D. pulmonary

    Correct Answer
    A. A. tricuspid
    Explanation
    The valve described in the question, consisting of three triangular segments, is called the tricuspid valve. This valve is located between the upper and lower chambers of the sight side of the heart.

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  • 9. 

    A saclike bulging of the wall of the vein or artery is called a(n)_________

    • A. anoxia

    • B. aneurysm

    • C. hypoxia

    • D. heart block

    Correct Answer
    A. B. aneurysm
    Explanation
    An aneurysm is a saclike bulging of the wall of a vein or artery. It occurs when the wall weakens and balloons out, creating a potential risk for rupture. This can lead to serious health complications, such as internal bleeding or stroke. Therefore, an aneurysm is the correct term to describe this condition.

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  • 10. 

    The main function of the ventricles is                  the blood.

    • A. receiving

    • B. pumping

    • C. holding

    • D. distributing

    Correct Answer
    A. B. pumping
    Explanation
    The ventricles of the heart are responsible for pumping blood throughout the body. They receive blood from the atria and then contract to pump the blood out to the rest of the body. This pumping action ensures that oxygenated blood is delivered to the tissues and organs, while deoxygenated blood is returned to the lungs for oxygenation. Therefore, the correct answer is b. pumping.

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  • 11. 

    The muscular well that divides the two lower chambers of the heart is called

    • A. vasoconstrictor

    • B. tricuspid valve

    • C. ventricular septum

    • D. vena cava

    Correct Answer
    A. C. ventricular septum
    Explanation
    The muscular well that divides the two lower chambers of the heart is called the ventricular septum. This structure separates the left and right ventricles, ensuring that oxygenated and deoxygenated blood do not mix within the heart. It plays a crucial role in maintaining the efficient functioning of the heart and preventing any backflow of blood. The tricuspid valve, vasoconstrictor, and vena cava are all different structures within the heart and do not serve the same function as the ventricular septum.

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  • 12. 

    The vein that returns blood from the head and neck to the heart is called the                      vein.

    • A. ventricular

    • B. interatnial

    • C. jugular

    • D. atrial

    Correct Answer
    A. C. jugular
    Explanation
    The correct answer is c. jugular. The jugular vein is responsible for returning blood from the head and neck back to the heart. It is located on either side of the neck and is a major pathway for venous blood flow in the body.

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  • 13. 

    An area of tissue damaged or dead as a result of an insufficient blood supply due to an occlusion is called a(n)

    • A. blockage

    • B. infarct

    • C. episode

    • D. angina

    Correct Answer
    A. B. infarct
    Explanation
    An area of tissue damaged or dead as a result of an insufficient blood supply due to an occlusion is called an infarct. This occurs when there is a blockage in the blood vessels, preventing adequate blood flow to the tissue. As a result, the tissue becomes deprived of oxygen and nutrients, leading to cell death and tissue damage. The term "infarct" is commonly used to describe this type of ischemic injury.

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  • 14. 

    9. A sinus rhythm at a rate of 100 would be considered

    • A. borderline sinus tachycardia

    • B. borderline sinus bradycardia

    • C. sinus arrhythmia

    • D. sinus rhythm

    Correct Answer
    A. A. borderline sinus tachycardia
    Explanation
    A sinus rhythm refers to the normal electrical activity of the heart. A heart rate of 100 beats per minute is slightly higher than the normal range (60-100 bpm), but not high enough to be classified as tachycardia. Therefore, it is considered borderline sinus tachycardia.

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  • 15. 

    Electrical current spreads from the AV bundle into small fibers called

    • A. ventricle fibers

    • B. Bundle of His

    • C. Bundle Branches

    • D. Purkinje Fibers

    Correct Answer
    A. D. Purkinje Fibers
    Explanation
    Electrical current spreads from the AV bundle into small fibers called Purkinje Fibers. These fibers are responsible for transmitting the electrical impulses to the ventricles, causing them to contract and pump blood out of the heart. The Purkinje Fibers are located in the walls of the ventricles and ensure coordinated and synchronized contraction of the ventricles, allowing for efficient blood circulation throughout the body.

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  • 16. 

    When the blood supply is completely cut off to a part of the body, a state of____________ exists in the tissue

    • A. edema

    • B. dyspnea

    • C. anoxia

    • D. arteriosclerosis

    Correct Answer
    A. C. anoxia
    Explanation
    When the blood supply is completely cut off to a part of the body, a state of anoxia exists in the tissue. Anoxia refers to the absence or lack of oxygen supply to the tissues. Without oxygen, the cells in that part of the body are unable to carry out their normal functions, leading to tissue damage and potentially cell death. This can occur in conditions such as a blocked blood vessel or severe injury that disrupts blood flow to a specific area.

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  • Oct 13, 2023
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  • Mar 03, 2012
    Quiz Created by
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