Circuitry of the Cardiovascular System

Question 1

The pulmonic circulation has a ____ (lower, same, higher) resistance, afterload, and stroke work compared to systemic circulation

Answer 1

Lower

Question 2

At rest, the cardiac output is ___ L/min

Answer 2

5L/min

Max CO = 20L/min (non-athlete)
Max CO = 30L/min (athlete)

Question 3

THe blood flow per 100g tissue is greatest in what organ?

Answer 3

Kidneys

Question 4

What is the formula for the CO

Answer 4

CO = HR x SV

CO = VR

Question 5

____ is the site of greatest resistance

Answer 5

arterioles

Question 6

This has the largest total cross-sectional area and the slowest blood flow velocity

Answer 6

capillaries

Question 7

___ and ____ control blood flow

Answer 7

metarterioles and pre-capillary sphincter

Question 8

_____ are called capacitance vessels since it has greater distensibility and compliance

Answer 8

Veins

Question 9

Another name for the right atrial pressure

Answer 9

Central venous pressure

Question 10

What is the cardiac output at rest?

Answer 10

5L/mon

Question 11

The maximum CO of a non-athlete

Answer 11

20L/min

Question 12

The maximum CO of a athlete

Answer 12

30L/min

Question 13

The CO of the L heart is also equal to the ____ blood flow

Answer 13

systemic blood flow

Question 14

The CO of the R heart is also equal to the ____ blood flow

Answer 14

pulmonary blood flow

Question 15

Contains the stressed volume

Answer 15

arteries

Question 16

the blood flowing here has a high pressure

Answer 16

arteries

Question 17

higher cross sectional area
lower blood flow velocity
gas exchange

Answer 17

capillaries

Question 18

____ control blood flow

Answer 18

metarterioles

pre-capillary sphincters

Question 19

how many percent of blood are found in the veins

Answer 19

64%

Question 20

____ are capacitance vessels

Answer 20

64%

Question 21

greater capacitance greater distensibility, greater compliance

Answer 21

veins

Question 22

area with the slowest blood flow velocity

Answer 22

capillaries

Question 23

The right atrial pressure is also called ____ pressure

Answer 23

central venous pressure

Question 24

the site at which the systolic pressure is highest

Answer 24

renal artery