Bio 219: Map #9 - Blood Flow And The Control Of Bp

Front 1

Blood pressure is lowest in the

Back 1

veins

Front 2

In the capillaries, hydrostatic pressure (HP) is exerted by __________.

Back 2

blood pressure

Front 3

The net hydrostatic pressure (HP) is the hydrostatic pressure in the __________ minus hydrostatic pressure in the __________.

Back 3

capillary; interstitial fluid

Front 4

Which of the following would reflect the typical net hydrostatic pressure (HP) at the arterial end of the capillary?

Back 4

34 mm Hg

Front 5

The colloid osmotic pressure in the capillary is caused by __________.

Back 5

proteins in the blood

Front 6

Which net pressure draws fluid into the capillary?

Back 6

net osmotic pressure

Front 7

Reabsorption of fluid into the capillary takes place at the arterial end or venous end of the capillary?

Back 7

venous

Front 8

Arterial blood flow rises and falls during the cardiac cycle because __________.

Back 8

arterial pressure rises and falls

Front 9

Peripheral resistance depends on all of the following factors except __________.

Back 9

blood colloid osmotic pressure

Front 10

In liver disease, the production of plasma proteins can be greatly reduced. This often leads to __________.

Back 10

decreased blood colloid osmotic pressure

Front 11

Which of these helps move blood around the systemic system?
a. smooth muscle in the tunica media
b. arterial pressure greater than venous pressure
c. right ventricle
d. venous pressure greater than arterial pressure

Back 11

b. arterial pressure greater than venous pressure

Front 12

As blood travels from arteries to veins,

Back 12

pressure drops

Front 13

Blood pressure increases with all of the following, except increased
a. cardiac output
b. parasympathetic innervation
c. peripheral resistance
d. blood volume
e. force of cardiac contraction

Back 13

b. parasympathetic innervation

Front 14

The difference between the systolic and diastolic pressures is called the ________ pressure.

Back 14

pulse

Front 15

The blood colloid osmotic pressure mostly depends on the

Back 15

concentration of plasma proteins

Front 16

Clinically, the term blood pressure usually refers to

Back 16

arterial pressure

Front 17

Which of the following would have the greater effect on vascular resistance?

Back 17

decreasing the diameter of a blood vessel by 1/2

Front 18

In which of the following would the blood flow be highest?
a. a vessel 1.0 cm in diameter and 10 meters long
b. a vessel 1.0 cm in diameter and 2 meters long
c. a vessel 0.5 cm in diameter and 2 meters long
d. a vessel 0.5 cm in diameter and 4 meters long

Back 18

b. a vessel 1.0 cm in diameter and 2 meters long

Front 19

True/False: Blood pressure drops the most within arterioles.

Back 19

true

Front 20

Where are the sensors for the arterial baroreceptor reflex located?

Back 20

carotid sinus and aortic arch

Front 21

If blood pressure is increased at the arterial baroreceptors, what would happen with the activity level of the parasympathetic nervous system (PNS) and sympathetic nervous system (SNS)?

Back 21

increased PNS activity and decreased SNS activity

Front 22

Which of the following would cause vasodilation of arterioles?

Back 22

decreased activity of the sympathetic nervous system

Front 23

Stimulation of the adrenal medulla would result in which of the following?

Back 23

an increase in heart rate and contractility

Front 24

A decrease in blood pressure at the arterial baroreceptors would result in which of the following?

Back 24

an increase in heart contractility

Front 25

Each of the following would cause an increase in blood pressure except __________.
a. increase in blood volume
b. increase in peripheral resistance
c. an inhibitor of angiotensin II
d. increase in aldosterone

Back 25

c. an inhibitor of angiotensin II

Front 26

The cardiovascular centers in the medulla oblongata control __________.
a. cardiac contractility
b. peripheral resistance
c. heart rate
d. All of these are controlled by the cardiovascular centers in the medulla oblongata

Back 26

d. All of these are controlled by the cardiovascular centers in the medulla oblongata

Front 27

Each of the following will lead to a decrease in blood pressure, except
a. decreased levels of aldosterone
b. release of renin
c. increased levels of ANP (atrial natriuretic peptide)
d. decreased in blood volume

Back 27

b. release of renin

Front 28

Each of the following will cause an increase in blood pressure, except
a. increased levels of aldosterone
b. increased levels of ANP (atrial natriuretic peptide)
c. increased levels of angiotensin II
d. increased blood volume

Back 28

b. increased levels of ANP (atrial natriuretic peptide)

Front 29

Vickie has a tumor that secretes excess amounts of the hormone aldosterone. Because of the elevated level of hormone, she exhibits

Back 29

both increased blood pressure and increased body stores of sodium ion.

Front 30

If a person has a blood pressure of 120/90, his mean arterial pressure would be ________ mm Hg.

Back 30

100

Front 31

Which set of changes correctly describes the baroreceptor reflex in response to increased blood pressure?
a. increased vessel diameter, decreased resistance, decreased cardiac output
b. decreased vessel diameter, decreased resistance, decreased cardiac output
c. increased vessel diameter, increased resistance, increased cardiac output
d. decreased vessel diameter, increased resistance, decreased cardiac output

Back 31

a. increased vessel diameter, decreased resistance, decreased cardiac output