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NASM PT certification > The Cardiorespiratory System 3-1 > Flashcards

The Cardiorespiratory System 3-1 Flashcards

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0
Q

The cardiovascular system and the cardiorespiratory system together provide the kinetic chain with what (4)

A

Oxygen
Nutrients
Protective agents
And a means to remove waste by-products

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1
Q

The cardiorespiratory system is comprised for…?

A

Cardiovascular system and respiratory system

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2
Q

Provides optimal cellular function within the kinetic chain

A

The cardiorespiratory system

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3
Q

The cardiovascular system is comprised of…?

A

The heart, blood and blood vessels

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4
Q

A hollow muscular organ that pumps blood via rhythmic contraction

A

The heart

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5
Q

The heart muscle has similar characteristics to skeletal muscle except for the fact that it is an involuntary muscle. What is a involuntary muscle?

A

Involuntary muscles cannot be consciously contracted

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6
Q

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

A

Mediastinum

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7
Q

How many BPMS is the typical adult heart rate?

A

70 - 80 BPMS

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8
Q

What is the function of the sinoatrial node (SA) also known as the “pacemaker”

A

It initiates the heartbeat

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9
Q

Where is the (SA) node located

A

The right atrium

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10
Q

Two small chambers of the heart that receives blood from the vines and pumps it to the ventricles

A

The atrium

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11
Q

Two large inferior chambers of the heart that receive blood from the atrium and pump them it to the arteries

A

Ventricles

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12
Q

Which atrium receives deoxygenated blood from the body

A

Right

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13
Q

Which atrium receives re-oxygenated blood from (ventricles) the heart?

A

Left atrium

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14
Q

Which ventricle receives blood from deoxygenated blood from the atrium and pumps it to the lungs to be saturated with oxygen

A

The right ventricle receives blood from the right atrium

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15
Q

Which ventricle receives re-oxygenated blood from the atrium and pumps it to the rest of the body

A

The left

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16
Q

What is the function of the atrioventricular valves and the semilunar valves

A

They prevent a back flow or spillage of blood back into the chambers

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17
Q

What is stroke volume (SV?)

A

The amount of blood that is pumped from the ventricle with each contraction

18
Q

What is the stroke volume of the typical adult

A

Approximately 75-80 millimeters per beat

19
Q

What is heart rate?

A

The rate at which the heart pumps

20
Q

What is the heart rate of the typical adult

A

70 - 80 bpm beats per minute

21
Q

Together heart rate and stroke volume are know as what?

A

Cardiac output (Q)

22
Q

How long do you measure a pulse when your subject is at rest

A

60 seconds

23
Q

Factors that may affect resting heart rate

A 
Digestion
Mental activity 
Environmental temperature 
Biological rhythms 
Body position 
Cardio fitness
24
Q

When measuring a pulse during exercise how long do you count?

A

6 seconds

25
Q

When measuring a pulse for only 6 seconds during exercise how do you calculate the HR?

A

Add a zero,, if you counted 12 beats adding a zero you give you 120 bps, or multiple by 10 which will also give you 120

26
Q

This vital support mechanism provides an internal transportation, regulation and protection system for the kinetic chain

A

Blood

27
Q

How much blood in in the average person

A

5 liters or 1 1/2 gallons

28
Q

Blood is heavier that water and constitutes approximately what percent of body weight

A

8%

29
Q

What does blood transport (4)

A

Oxygen and nutrition to tissue
Waste products from tissue
Hormones to tissues and organs
Heat throughout the body

30
Q

What does blood regulate

A

Body temperature and acid balance

31
Q

How does blood protect the body (2)

A

It protects the body from excessive bleeding by clotting

Contains specialized immune cells that help fight disease and sickness

32
Q

The network of tubes throughout the body that circulates blood to and from the heart

A

Blood vessels

33
Q

Muscular elastic tubes that carry blood from the heart

A

Arteries

34
Q

Medium sized arteries divide into small arteries called….?

A

Arterioles

35
Q

Arterioles branch out to microscopic vessels known as…

A

Capillaries

36
Q

Oxygen , nutrients, hormones and waste products are exchanged between tissues in this typ of blood vessel

A

Capillaries

37
Q

Name the vessels that collect blood from capillaries

A

Venules

38
Q

Venules progressively merge with other venules to form what?

A

Veins

39
Q

Very small vines that connect capillaries to larger vines

A

Venules

40
Q

The smallest blood vessels which connect venules to arterioles

A

Capillaries

41
Q

Small terminal branches of an artery which end in capillaries

A

Arterioles

42
Q

Tubes that carry blood from the capillaries toward the head

A

Veins

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