systemiccirculation

Question 1

Smooth muscle is arranged ___ around blood vessels

Answer 1

circumferentially

Question 2

Smooth muscle produces an active tension by ____ the vessel and thus changing the radius.

Answer 2

constricting

Question 3

do blood vessels resist stretch more strongly or are they more are stretched? they ___ more

Answer 3

resist stretch

Question 4

an ideal spring has a linear response, but since a blood vessel ___ stretch it is curved

Answer 4

resists

Question 5

tension is equal to

Answer 5

pressure x radius

Question 6

For most arteries and veins, the dynamic pressure is ___ and they act like balloons with one pressure (lateral/static) throughout.

Answer 6

small

Question 7

the pressure across the vessel wall, termed the ___ pressure

Answer 7

transmural

Question 8

Since the extra-lumenal (i.e. outside of the vessel) pressure is essentially equal to atmospheric, the pressure across the vessel wall, termed the transmural pressure, is equal to the

Answer 8

blood pressure.

Question 9

The ___ pressure gives rise to the development of tension within the vessel wall

Answer 9

transmural

Question 10

The blood vessels respond to pressure changes by expanding or contracting, or by increasing the opposing force by ____

Answer 10

smooth muscle contraction.

Question 11

___ may promote the enlargement of an aneurism,

Answer 11

Tension

Question 12

The total tension in the circulation varies ~10^___ from the large arteries to capillaries.

Answer 12

10^4

Question 13

___ experience a very SMALL transmural pressure

Answer 13

Capillaries

Question 14

Some vascular beds do not have significant active tension mechanisms, rather, they rely on the ____ fibers for mechanical properties of the wall.

Answer 14

elastic

Question 15

concept of compliance: the greater the volume of fluid the greater the

Answer 15

pressure

Question 16

compliance =

Answer 16

change in volume/change in pressure transmural

Question 17

Pressure _=

Answer 17

P in-P out

Question 18

Elastance is equal to ___ in terms of compliance

Answer 18

1/C

Question 19

with ___ if you change pressure even a little bit you change volume a lot

Answer 19

veins

Question 20

___ cannot mobilize a lot of volume

Answer 20

arteries

Question 21

vein or artery have higher slope?

Answer 21

vein

Question 22

pressure on Y and volume on X_ steeper slope means noncompliant or compliant?

Answer 22

noncompliant

Question 23

if you lose pressure in ___ system, your volume drops off quickly

Answer 23

arterial

Question 24

vascular compliance decreases with ___-

Answer 24

age *

Question 25

when volume is on Y and pressure is on X lower compliance is more ___

Answer 25

less steep

Question 26

pulse pressure is proportional to

Answer 26

stroke volume/compliance

Question 27

large radius means ___ tension

Answer 27

large

Question 28

stenosis causes ___ tension

Answer 28

less since you are decreasing radius

Question 29

resistance of blood vessel changes with increase in ____

Answer 29

pressure

Question 30

hemoorrhagic shock you have ___ shift of curve on pressure vs. volume

Answer 30

left

Question 31

aorta has compliant properties allows you to have a ____ pressure

Answer 31

diastolic

Question 32

concept of compliance: the greater the volume of fluid the greater the

Answer 32

pressure

Question 33

compliance =

Answer 33

change in volume/change in pressure transmural

Question 34

Pressure _=

Answer 34

P in-P out

Question 35

Elastance is equal to ___ in terms of compliance

Answer 35

1/C

Question 36

with ___ if you change pressure even a little bit you change volume a lot

Answer 36

veins

Question 37

___ cannot mobilize a lot of volume

Answer 37

arteries

Question 38

vein or artery have higher slope?

Answer 38

vein

Question 39

pressure on Y and volume on X_ steeper slope means noncompliant or compliant?

Answer 39

noncompliant

Question 40

if you lose pressure in ___ system, your volume drops off quickly

Answer 40

arterial

Question 41

vascular compliance decreases with ___-

Answer 41

age *

Question 42

when volume is on Y and pressure is on X lower compliance is more ___

Answer 42

less steep

Question 43

pulse pressure is proportional to

Answer 43

stroke volume/compliance

Question 44

large radius means ___ tension

Answer 44

large

Question 45

stenosis causes ___ tension

Answer 45

less since you are decreasing radius

Question 46

resistance of blood vessel changes with increase in ____

Answer 46

pressure

Question 47

hemoorrhagic shock you have ___ shift of curve on pressure vs. volume

Answer 47

left

Question 48

aorta has compliant properties allows you to have a ____ pressure

Answer 48

diastolic