quiz #5 - blood vessels

Question 1

what blood vessels carry blood away from the heart to other organs?

Answer 1

arteries

Question 2

which layer of the arterial wall is responsible for vasoconstriction?

Answer 2

tunica media

Question 3

a blockage in the proximal portion of the right subclavian artery will not only affect circulation to the right arm, but also to the

Answer 3

right vertebral artery

Question 4

in resting individuals, which vessels serve as a large blood reservoir from which blood can be quickly diverted to other vessels as needed?

Answer 4

veins and venules

Question 5

in order to supply oxygenated blood to the liver tissue, which vessel must deliver blood to the organ?

Answer 5

Hepatic artery

Question 6

if a patient is confined to bed and is unable to walk at all, which of the following will be seriously affected?

Answer 6

the circulation returning from the lower body

Question 7

which of the following is the most important method of capillary exchange?

Answer 7

simple diffusion

Question 8

the alternate route of blood flow to a body part is called…

Answer 8

anastomosis (collateral circulation)

Question 9

the largest driving force for pulling fluid from the interstitial spaces back into the capillaries is…

Answer 9

blood colloid osmotic pressure

Question 10

the pressure-driven movement of fluids and solutes from blood into interstitial fluid is called

Answer 10

filtration

Question 11

the volume of blood that circulates through the systemic (or pulmonary) blood vessels per minute is called

Answer 11

cardiac output

Question 12

what would NOT result in an increase in arterial blood pressure?

Answer 12

increased arteriolar vasodilation

Question 13

the cardiovascular center is located in…

Answer 13

the medulla oblongata

Question 14

which hormone would NOT stimulate changes that lead to an increase in arterial blood pressure?

Answer 14

Atrial natriuretic peptide (ANP)

Question 15

nutrients from digested food enter the liver via the…

Answer 15

hepatic portal circulation

Question 16

abnormal conditions such as atherosclerosis and patent (open) ductus arteriosus cause a large increase in the

Answer 16

pulse pressure

Question 17

all the veins of the systemic circulation eventually drain into the…

Answer 17

superior and inferior vena cava and coronary sinus

Question 18

if the foramen ovale doesn’t close at birth, the result will be…

Answer 18

introducing deoxygenated blood into the systemic circulation

Question 19

which of the following vessels drains blood from the head and neck?

Answer 19

Jugular vein

Question 20

when the umbilical cord is tied after birth, the umbilical arteries close by filling in with…

Answer 20

connective tissue

Question 21

the pulmonary circulatory route carries blood from the…

Answer 21

right ventricle to the left atrium

Question 22

into which of the following categories would an individual with a blood pressure of 145/95 be placed?

Answer 22

stage 1 hypertension

Question 23

the chemical histamine causes capillary walls to become more permeable. As a result, excess histamine secretion, as might be seen in allergic responses, might lead to…

Answer 23

edema

Question 24

the only place in the body where veins carry oxygenated blood and arteries carry deoxygenated blood is…

Answer 24

pulmonary circulation

Question 25

The Renin-angiotensin-aldosterone System involves stimulating a vasoconstrictor (angiotensin Il) and stimulating aldosterone secretion which increases water reabsorption. In these two ways we can…

Answer 25

increase blood volume & blood pressure

Question 26

These two pressures promote filtration: _____ & _____ and these two pressures promote reabsorption _____ & _____

Answer 26

blood hydrostatic pressure (BHP) & interstitial fluid osmotic pressure (IFOP)

blood colloid osmotic pressure
(BCOP) & interstitial fluid hydrostatic pressure (IFHP)

Question 27

Capillaries in the bone marrow have _____ walls and are called _____

Answer 27

leaky, sinusoids