Chapter 3: Cardiorespiratory System

Question 1

Adenosine triphosphate

Question 2

Aerobic

Question 3

Anaerobic

Question 4

Atrium

Answer 4

The superior chamber of the heart that receives blood from the veins and forces it into the ventricles

Question 5

Bioenergetics

Question 6

Cardiovascular system

Answer 6

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

Question 7

Expiration

Question 8

Inspiration

Question 9

Mediastinum

Answer 9

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

Question 10

Ventricle

Answer 10

The inferior chamber of the heart that receives blood from its corresponding atrium and, in turn, forces blood into the arteries

Question 11

What is stroke volume?

Answer 11

The amount of blood that is pumped out with each contraction of a ventricle

Average Measurement: For a typical adult, approximately 75-80 mL/beat

Question 12

What is cardiac output?

Answer 12

The combination of how many times the heart beats per minute and how much blood is being pumped out with each beat

Cardiac output is the combination of heart rate and stroke volume

Question 13

How is cardiac output calculated?

Answer 13

Cardiac output is the combination of how many times the heart beats per minute and how much blood is being pumped out with each beat