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CPT exam prep > Chapter 3 Prep(cardio respiratory) > Flashcards

Chapter 3 Prep(cardio respiratory) Flashcards

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1
Q 
Which of the following is part of the cardiovascular system?
A. Trachea
B. Bronchi
C. Blood
D. Lungs
A

Blood

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2
Q

Which of the following refers to the space in the chest between the lungs that contains all the
internal organs of the chest except the lungs?
A. Mediastinum
B. Interstitium
C. Peritoneum
D. Retroperitoneum

A

Mediastinum

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3
Q

Identify a true statement about cardiac muscle.
A. It is a voluntary muscle.
B. Cardiac muscle fibers are longer than skeletal muscle fibers.
C. Cardiac muscle fibers are more tightly connected than skeletal muscle fibers.
D. It is devoid of intercalated discs.

A

more tightly connected than skeletal

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4
Q

Identify a true statement about skeletal muscle.
A. It is a voluntary muscle.
B. Skeletal muscle fibers are shorter than cardiac muscle fibers.
C. Skeletal muscle fibers are more tightly connected than cardiac muscle fibers.
D. It is composed of intercalated discs.

A

It is Voluntary

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5
Q

Which of the following is the function of intercalated discs?
A. They help hold muscle cells together during the contraction of the heart.
B. They help regulate body temperature, fight infections, and remove waste products.
C. They help remove heat from internal to external regions of the body.
D. They help pump blood back to the heart during inspiration.

A

A

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6
Q

A specialized area of cardiac tissue, located in the right atrium of the heart, which initiates the
electrical impulses that determine the heart rate is called the _____.
A. sinoatrial (SA) node
B. atrioventricular (AV) node
C. foramen ovale
D. fossa ovalis

A

A

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7
Q 
Which of the following is referred to as the pacemaker for the heart?
A. Sinoatrial node
B. Pectoral node
C. Atrioventricular node
D. Supratrochlear node
A

A

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8
Q

A small mass of specialized cardiac muscle fibers, located in the wall of the right atrium of the
heart, which receives heartbeat impulses from the sinoatrial node and directs them to the walls
of the ventricles is called the _____.
A. sentinel node
B. atrioventricular node
C. aortic arch
D. fossa ovalis

A

B

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9
Q

In the electrical conduction system of the heart, which of the following delays the impulse before
allowing it to move on to the ventricles?
A. Sinoatrial node
B. Pectoral node
C. Atrioventricular node
D. Supratrochlear node

A

C

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10
Q

Which of the following is true of the right ventricle?
A. It receives oxygenated blood from the lungs.
B. It is separated from the right atrium by the bicuspid valve.
C. It sends deoxygenated blood to the lungs.
D. It is separated from the left atrium by the aortic valve.

A

C

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11
Q

Which of the following is true of the left ventricle?
A. It receives oxygenated blood and pumps it to the entire body.
B. It has thick walls and pumps blood under low pressure.
C. It receives deoxygenated blood and pumps it to the lungs.
D. It has thin walls and pumps blood under low pressure.

A

A

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12
Q 
Identify the term that refers to the amount of blood pumped out of the heart with each
contraction.
A. Radial pulse
B. Heart rate
C. Cardiac output
D. Stroke volume
A

D

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13
Q 
\_\_\_\_\_ is the volume of blood pumped by the heart per minute (mL blood/min).
A. Filtration fraction
B. Heart rate
C. Stroke volume
D. Cardiac output
A

D

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14
Q 
\_\_\_\_\_ is a function of heart rate and stroke volume.
A. Filtration fraction
B. Anion gap
C. Net acid excretion
D. Cardiac output
A

D

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15
Q 
What is the cardiac output of a person who has a resting heart rate of 80 bpm and resting stroke
volume of 80 mL/beat?
A. 6400 mL/min
B. 160 mL/min
C. 80 mL/min
D. 4800 mL/min
A

A

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16
Q 
\_\_\_\_\_ are the smallest blood vessels and the site of exchange of chemicals and water between
the blood and the tissues.
A. Conduit arteries
B. Capillaries
C. Muscular arteries
D. Venules
A

B

17
Q 
A(n) \_\_\_\_\_ is a very small vein that connects a capillary to a larger vein.
A. venule
B. carotid
C. vena cava
D. artery
A

A

18
Q 
\_\_\_\_\_ are vessels that transport blood from the capillaries toward the heart.
A. Arterioles
B. Carotids
C. Arteries
D. Veins
A

D

19
Q 
\_\_\_\_\_ is a small terminal branch of an artery, which ends in capillaries.
A. Atrium
B. Venule
C. Vein
D. Arteriole
A

D

20
Q 
The primary role of the \_\_\_\_\_ is to ensure proper cellular function.
A. respiratory system
B. immune system
C. integumentary system
D. endocrine system
A

A

21
Q

_____ is the actual process of moving air in and out of the body and requires optimal functioning
of the respiratory pump and all its components.
A. Ventilation
B. Transpiration
C. Vascularization
D. Lachrymation

A

A

22
Q

Which structure of the respiratory pump assists in the process of actively or passively relaxing
the inspiratory muscles to move air out of the body?
A. Diaphragm
B. External intercostals
C. Sternocleidomastoid
D. Abdominals

A

A?

23
Q 
Which of the following collects the channeled air coming from the conducting airways?
A. Bronchioles
B. Alveoli
C. Trachea
D. Pharynx
A

B

24
Q

Which of the following components of the respiratory system assists in the purifying,
humidifying, warming, or cooling of air to match body temperature?
A. Alveoli
B. Bronchioles
C. Alveolar sacs
D. Sternum

A

B

25
Q

Resting oxygen consumption is approximately _____ of oxygen per kilogram of body weight per
minute, typically termed 1 metabolic equivalent or 1 MET.
A. 3.5 mL
B. 35.0 mL
C. 350 mL
D. 0.35 mL

A

B

26
Q 
Which of the following is the equation for oxygen consumption?
A. Hill equation
B. Starling equation
C. Fick equation
D. Goldman equation
A

C

27
Q 
\_\_\_\_\_ is the preferred method to measure maximal oxygen consumption.
A. The maximal exercise test
B. The submaximal exercise test
C. The one-tailed test
D. The two-tailed test
A

B

28
Q 
Identify the generally accepted measure of cardiorespiratory fitness.
A. Stroke volume
B. Maximal oxygen consumption
C. Maximal lung capacity
D. End-diastolic volume
A

B

CPT exam prep (20 decks)

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