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NASM CPT Course > Chapter 3 > Flashcards

Chapter 3 Flashcards

Cardiorespiratory System

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NASM ® CPT flashcards
1
Q

Cardiorespiratory system

A

system of body composed of cardiovascular and respiratory systems

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2
Q

Cardiovascular system

A

system of body composed of heart, blood, and blood vessels

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3
Q

Heart

A

hollow muscular organ that pumps a circulation of blood by means of rhythmic contraction

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4
Q

Mediastinum

A

space in chest between lungs that contains all internal organs of chest except lungs

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5
Q

sinoatrial node (SA node)

A

special area of cardiac tissue in right atrium of heart, initiates electrical impulses that determine heart rate (aka pacemaker of heart)

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6
Q

atrioventricular node (AV node)

A

small mass of specialized cardiac muscle fibers, in right atrium of heart, receives heart beat impulses from sinotrial node and directs them to walls of ventricles

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7
Q

atrium

A

superior chambers of heart that receive blood from veins, force it into ventricles

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8
Q

ventricle

A

inferior chambers of heart that receive blood from atrium and force it into arteries

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9
Q

stroke volume

A

amount of blood pumped out of heart with each contraction

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10
Q

Heart rate (HR)

A

rate at which heart pumps (beats per min)

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11
Q

Cardiac output (Q)

A

heart rate x stroke volume, the overall performance of the heart

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12
Q

Blood

A

fluid that circulates the heart, arteries, capillaries, and veins

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13
Q

Blood vessels

A

network of hollow tubes that circulates blood throughout body

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14
Q

arteries

A

transport blood away from the heart

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15
Q

capillaries

A

smallest blood vessels

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16
Q

veins

A

vessels that transport blood from capillaries toward the heart

17
Q

respiratory system

A

system of organs (lungs and passageways) that collects oxygen from external environment and transports to bloodstream

18
Q

respiratory pump

A

composed of skeletal structures (bones) and soft tissues (muscles) that work together to allow proper respiratory mechanics to occur

19
Q

inspiration

A

process of actively contracting inspiratory muscles to move air into body

20
Q

expiration

A

process of actively or passively relaxing inspiratory muscles to move air our of body

21
Q

diffusion

A

process of getting oxygen from environment to the tissues of the body

22
Q

Maximal oxygen consumption (VO2max)

A

highest rate of oxygen transport and utilization achieved at maximal physical exertion

NASM CPT Course (19 decks)

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