Ch 6

Question 1

What is the typical o2 consumption of an individual at rest?

Answer 1

3.5 mL of o2/kilo of body weight/minute or 1 MET

Question 2

Within the muscle, where does the exchange of o2 and co2 take place?

Answer 2

Within the capillaries

Question 3

The two hormones responsible for the “fight or flight” response are:

Answer 3

Epinephrine and norepinephrine

Question 4

What are the vessels that transport blood away from the heart

Answer 4

Arteries

Question 5

What are the small terminal branches of an artery

Answer 5

Arterioles

Question 6

What are the smallest blood vessels where o2 exchange occurs between blood and tissues

Answer 6

Capillaries

Question 7

What are the very small veins that connect the capillaries to the larger veins?

Answer 7

Venules

Question 8

What are the vessels that transport the un-oxygenated blood from the capillaries to the heart

Answer 8

Veins

Question 9

Conducting airways

Answer 9

Nasal+oral cavity, pharynx, larynx, bronchioles, trachea, right and left pulmonary bronchi

Question 10

Respiratory airways

Answer 10

Alveoli + alveolar sacs

Question 11

Gases (o2+co2) transportes in and out of blood stream through process known as diffusion

Answer 11

Alveolar sacs

Question 12

Sits at the end of bronchioles

Answer 12

Alveoli

Question 13

Getting o2 from environment to tissues of body

Answer 13

Diffusion

Question 14

What is overall performance of the heart? (Heart rate x stroke volume)

Answer 14

Cardiac output (Q)

Question 15

What is the amount of blood pumped out of heart during each contractions?

Answer 15

Stroke volume