Quiz 3

Question 1

True or False

The critical factor controlling stroke volume is preload

Answer 1

True

Question 2

True or False

SV= EDV-ESV

Answer 2

True

Question 3

True or False

At homeostasis, SV= 120ml -130ml

Answer 3

False

Question 4

True or False

CO= HR x SV

Answer 4

True

Question 5

True or False

If heart rate is 60 bpm and CO= 3600ml; SV= 60ml

Answer 5

True

Question 6

True or False

EDV= amount of blood in ventricle during systole

Answer 6

False

Question 7

True or False

ESV= amount of blood in the ventricle after contraction

Answer 7

True

Question 8

True or False

SV= amount of blood pumped by heart per minute

Answer 8

False

Question 9

True or False

Preload= amount ventricles are stretched by contained blood

Answer 9

True

Question 10

True or False

Cardiac reserve= difference between resting and maximal CO

Answer 10

True

Question 11

True or False

Epinephrine is a negative inotropic agent

Answer 11

False

Question 12

True or False

Sympathetic fibers release the neurotransmitter, acetylcholine

Answer 12

False

Question 13

True or False

The heart exhibits vagal tone

Answer 13

True

Question 14

True or False

In dilated cardiomyopathy, atria stretch and become flabby

Answer 14

False

Question 15

True or False

Left side failure of the heart results from pulmonary edema

Answer 15

True

Question 16

True or False

Anastomosis is the merging of larger blood vessels

Answer 16

True

Question 17

True or False

The aorta is an example of a distributing artery

Answer 17

False

Question 18

True or False

Continuous capillaries make up the blood-brain barrier

Answer 18

True

Question 19

True or False

Fenestrated capillaries are found in the liver

Answer 19

False

Question 20

True or False

Sinusoid are found in bone marrow

Answer 20

True