E4: Ch15

Question 1

arteries have ___ receptors

Answer 1

Beta 2

Question 2

which artery subtype is known as “pressure reservoir”

Answer 2

arteries

Question 3

arteries contain ___ muscle and are high in ___ tissue and ___ tissue

Answer 3

smooth, elastic, fibrous

Question 4

has vessels move further away from the heart, elasticity ___ and muscularity ___

Answer 4

decreases, increases

Question 5

3 vessels in micro circulation

Answer 5

arterioles, capillaries, venules

Question 6

____ ____ are bands of smooth muscles that alter blood flow in capillary beds

Answer 6

pre-capillary spincters

Question 7

gas exchange occurs in capillaries because ____ and occurs at the ___ membrane

Answer 7

they are 1 endothelium cell thick, basement

Question 8

perictye: cell that contributes to ___ ____

Answer 8

capillary permibality

Question 9

increase in pericytes = ___ in leaky capillaries

Answer 9

decrease

Question 10

venues differ from capillaries by their ___ ____ ____

Answer 10

convergent flow pattern

Question 11

capillaries have the ___ blood velocity and the ___ cross-sectional velcotiy

Answer 11

lowest, highest

Question 12

which is there more of, arteries or veins?

Answer 12

veins

Question 13

___ ___: force creates blood flow through body

Answer 13

ventricular contraction

Question 14

sustaining ___ ___ keeps blood flow constant through arteries and vessels

Answer 14

driving pressure

Question 15

blood flow is ___ proportional to pressure

Answer 15

directly

Question 16

blood flow is ____ proportional to the resistance of vessels to blood flow

Answer 16

indirectly

Question 17

3 factors of blood flow resistance

Answer 17

vessel radius
vessel length
blood viscosity

Question 18

determinant of blood vescosity is the cross-sectional ___ of the vessel

Answer 18

area

Question 19

mean arteriole pressure = ___ pulse pressure

Answer 19

1/3

Question 20

“blood pressure” = ___ ___ pressure

Answer 20

arteriol blood pressure

Question 21

peripheral resistance is the resistance to flow. located in the ___

Answer 21

arterioles

Question 22

mean arterial pressure is proportional to ____ * ____

Answer 22

cardiac output, resistance

Question 23

high blood volume = ___ blood pressure

Answer 23

high

Question 24

in fast BP fixing, the cardio system compensates by doing what two things to return the BP to hemoestasis

Answer 24

vasodilation, decrease cardio output

Question 25

in slow BP fixing, the kidneys compensate by doing what to return the BP to homeostasis

Answer 25

excretion of fluid in the urine

Question 26

BP is controlled by what 2 things

Answer 26

hormones and sympathetic neurons

Question 27

norepinephrine controls artery tone. it ___ artery dilation and ___ constriction

Answer 27

decreases, increases

Question 28

alpha receptors have high affinity for ___

Answer 28

norepinephrine

Question 29

can the body alter blood flow to organs

Answer 29

yes

Question 30

the body can alter blood flow to organs because...

Answer 30

arteries are arranged in parallel manner

Question 31

flow to the __ stays consistent

Answer 31

Brain

Question 32

___ diabetes coronary arterioles, decreases resistance, and increases flow to muscles

Answer 32

adinosine

Question 33

which nervous system branch controls BP reflex control and blood distribution

Answer 33

CNS

Question 34

the ____ reflex controls BP

Answer 34

baroreceptor

Question 35

Baroreceptor reflex controls BP through activating the ____ cardio control center

Answer 35

medullary

Question 36

baroreceptor reflex in located where

Answer 36

walls of carotid

Question 37

heart function is reg'd by ___ control

Answer 37

antagonistic

Question 38

and increase in sympathetic nervous activity __ heart rate

Answer 38

increases

Question 39

gas exchange occurs through ___, ____, and ___ flow

Answer 39

diffusion, transcytosis, bluff flow

Question 40

diffusion rate is determined via ___ ___

Answer 40

concentration gradient

Question 41

absorption is ___ capillaries

Answer 41

into

Question 42

filtration is ___ capillaries

Answer 42

leaving

Question 43

if blood that flows through the capillaries heads to filtration, is leaves the capillaries and enters what

Answer 43

lymph vessel

Question 44

increase in capillary hydrostatic pressure is seen in heart ___

Answer 44

failure

Question 45

decrease in plasma protein concentration is seen in __ and __ failure

Answer 45

malnutrition, liver

Question 46

increase in interstitial proteins are seen in ___ capillary ____

Answer 46

excessive capillary leakage

Question 47

atherosclerosis is an ___ process

Answer 47

inflammatory

Question 48

hypertension is the result of failed ___

Answer 48

homeostasis