Ch 3 - The Cardiorespiratory System Flashcards

1
Q

Which term describes the number of heart beats per minute and the amount of blood pumped per minute/beat?

A

Cardiac Output

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2
Q

Which of the following is true of a skeletal muscle?

A

It is a voluntary muscle

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3
Q

Which of the following refers to vessels that transport blood from the capillaries toward the heart?

A

Veins

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4
Q

Heavy breathing results in an increase in the activity level of which of the following secondary respiratory muscles?

A

Scaleness

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5
Q

Normal breathing uses which primary respiratory muscle?

A

Diaphram

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6
Q

Which term refers to the amount of blood pumped out of the heart with each contraction?

A

Stroke Volume

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7
Q

When should the three measurements for resting heart rate be taken for greatest accuracy?

A

At the same time each day upon waking

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8
Q

Arterioles branch out into vessels known as what?

A

Capillaries

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9
Q

Within what range is the typical resting heart rate of a human being?

A

70-80 bpm

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10
Q

What system of organs that collects oxygen from the external environment and transports it to the bloodstream?

A

Respiratory System

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11
Q

What is a small terminal branch of an artery that ends in capillaries?

A

Arteriole

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12
Q

After leaving the left ventricle, blood enters which structure?

A

Aorta

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13
Q

What may be the best measure of cardiorespiratory fitness?

A

Maximal oxygen consumption

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14
Q

Which structure is water and chemicals exchanged between the blood and tissues?

A

capillaries

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15
Q

What is a life-sustaining fluid that supplies the body’s organs and cells with oxygen and nutrients and helps regulate body temperature, fight infections and remove waste products?

A

Blood

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16
Q

Resting oxygen consumption is approximately how many mL of oxygen per kilogram body weight per minute?

A

3.5mL

17
Q

Deoxygenated blood is pumped from the right ventricle to the lungs through which of the following vessels?

A

Pulmonary arteries