Vessels

Question 1

Which vessels typically carry blood away from the heart?

Answer 1

arteries

Question 2

Which vessels have thinner walls?

Answer 2

veins

Question 3

What will an increase in vessel radius do to peripheral resistance?

Answer 3

lower resistance

Question 4

Which blood vessels handle the highest blood pressure?

Answer 4

systemic arteries

Question 5

Which nervous system promotes increased peripheral resistance and increased blood pressure through the vasoconstriction of systemic arterioles?

Answer 5

sympathetic

Question 6

The Valsalva maneuver causes a drop in blood pressure which should be detected by

Answer 6

Baroreceptors

Question 7

Which mechanism allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries?

Answer 7

Diffusion

Question 8

Water crosses capillary beds from high to low hydrostatic pressure by

Answer 8

Filtration

Question 9

What is edema?

Answer 9

swelling

Question 10

As peripheral resistance _________, blood pressure __________

Answer 10

increases; increases

Question 11

Peripheral resistance includes blood vessel_____________, blood _____________, and vessel ____________.

Answer 11

Length; viscosity; radius

Question 12

Blood pressure is equivalent to

Answer 12

hydrostatic pressure

Question 13

At the arteriole end of the capillary, which pressure is the greatest?

Answer 13

capillary hydrostatic pressure

Question 14

Which pressure pulls water into the capillary?

Answer 14

colloid osmotic pressure

Question 15

Which pressure is created by the presence of large proteins in the blood, such as albumin?

Answer 15

colloid osmotic pressure

Question 16

What type of capillary has large pores within their endothelial cells and are the leakiest?

Answer 16

sinusoidal capillaries

Question 17

Which capillary would be least likely to allow substances to enter or exit the blood due to tight junctions that join the endothelial cells?

Answer 17

continuous capillaries

Question 18

What two values are needed to calculate mean arterial pressure (MAP)?

Answer 18

diastolic and systolic pressures

Question 19

The average pressure in the systemic arteries during an entire cardiac cycle is known as

Answer 19

MAP

Question 20

What is the average value for mean arterial pressure (MAP)?

Answer 20

95 mm Hg

Question 21

Which circuit has the greatest peripheral resistance?

Answer 21

systemic

Question 22

What two factors determine the pressure gradient that drives circulation?

Answer 22

cardiac output and peripheral resistance

Question 23

During exercise, our vessels constrict and vessel radius decreases. What impact does a decreased vessel radius have on blood flow?

Answer 23

blood flow increases

Question 24

What vessels serve as the blood reservoirs of the body?

Answer 24

veins

Question 25

Which of the following connects vessels through vascular anastomoses?

Answer 25

collaterals

Question 26

The outward force that blood exerts on the walls of blood vessels is

Answer 26

blood pressure

Question 27

Place in order from superficial to deep the three tunics of a typical blood vessel

Answer 27

Tunica externa, tunica media, tunica intima

Question 28

Which blood vessel tunic is innervated by nerves from the sympathetic nervous system?

Answer 28

tunica media

Question 29

Which of the following arteries has the smallest diameter?

Answer 29

metarterioles

Question 30

What type of vessel is built to handle the highest blood pressure of any vessel in the cardiovascular system?

Answer 30

elastic artery