Cardiorespiratory System

Question 1

Cardiovascular System

Answer 1

Heart, blood, and blood vessels

Question 2

Cardiac muscle

Answer 2

Short, tight connected skeletal muscle. Involuntary and fires synchronously

Question 3

Atria

Answer 3

Smaller superior chambers of the heart. Receive blood from veins.
Right-deoxygenated blood returning to heart
Left-oxygenated blood from the lungs

Question 4

Sinoatrial Node SA

Answer 4

In right atrium. Initiates impulse for heart rate

Question 5

Ventricles

Answer 5

Inferior chambers. Pump blood out
Right-deoxygenated to lungs
Left- oxygenated to body

Question 6

Arteries

Answer 6

Carry blood from heart

Question 7

Veins

Answer 7

Transport blood to heart

Question 8

Arteriols

Answer 8

Small branches of arteries, end in capillaries

Question 9

Capillaries

Answer 9

Site of gas, chemical, and water exchange

Question 10

Venules

Answer 10

Small veins. Connect capillaries to large veins

Question 11

Stroke volume

Answer 11

Blood per contraction

Question 12

Average heart beat

Answer 12

70-80

Question 13

Cardiac output

Answer 13

Blood per minute. HR x Stroke volume

Question 14

Inspiration

Answer 14

Contract inspiration muscles to move air into lungs

Question 15

Primary Inspiratory Muscles 2

Answer 15

Diaphram, external intercostals

Question 16

Secondary Inspiratory Muscles 3

Answer 16

Scalenes, pectoralis minor, sternocleidomastoid

Question 17

Expiration

Answer 17

contracting expiratory muscles to move air out

Question 18

Expiratory Muscles 2

Answer 18

Internal intercostals, abdominals

Question 19

Resting Oxygen Consumption VO2

Answer 19

3.5 ml/kg/min = 1 metabolic equivalent MET

Question 20

Maximal Oxygen Consumption VO2max

Answer 20

Highest rate of oxygen at max physical exertion

Question 21

Dysfunctional Breathing

Answer 21

Associated with stress an anxiety, may cause headaches, fatigue, poor circulation, and poor sleep