CV Overview

Question 1

What are the openings off the aorta for the coronary arteries called?

Answer 1

coronary ostia

Question 2

What are the 3 coronary arteries?

Answer 2

right

circumflex

left main

Question 3

4 heart valves

Answer 3

aortic

pulmonary

bicuspid/mitral (left)

tricuspid (right)

Question 4

Systole

Answer 4

ventricular contraction

Question 5

Diastole

Answer 5

ventricular relaxation

Question 6

SV =

Answer 6

SV = EDV - ESV

end diastolic volume - end systolic volume

Question 7

CO =

Answer 7

CO = SV x HR

Question 8

What is Starling’s law of the heart?

Answer 8

if cardiac filling increases during diastole, then stroke volume and therefore CO also increase during systole

Question 9

Arteries are _______ resivoirs

Answer 9

pressure

Question 10

Veins are _______ resivoirs

Answer 10

volume

Question 11

Sympathetic fibers innervate these blood vessels

Answer 11

arterioles, venules, veins

Question 12

Arteriolar smooth muscles respond to…

Answer 12

local metabolic changes

Question 13

Normal CO

Answer 13

5-6 L/min for adults

Question 14

How does increasing the blood flow to the skeletal muscle affect blood flow to other organs?

Answer 14

it does not directly relate

Question 15

Flow rate equation

Answer 15

Q = change in pressure/R

Question 16

Resistance increases/decreases with increasing radius

Answer 16

decreases