Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ANA300 > BLOOD VESSELS > Flashcards

BLOOD VESSELS Flashcards

1
Q

primary site of action of vasoactive agents

A

post-capillary venules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

vasoactive agents

A

histamine, serotonin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what tunica is thickest in veins

A

tunica externa/adventitia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what % of blood in veins at any time

A

65-70%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

blood reservoir

A

veins, spleen, liver, bone marrow, skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what does sympathetic input do to veins

A

vasoconstriction; moves blood out of reservoir into arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

which tunica is thickest in muscular artery

A

tunica media (many SMCs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

T or F: BP in veins is too low to overcome gravity

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what forms venous valves

A

infolding of tunica intimacy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

where can you find venous valves

A

veins of lower limbs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

function of valves

A

prevent backflow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what forces venous blood against gravity

A

contraction of adjacent skeletal muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

T or F: there is huge vascular resistance in capillaries

A

T; very small diameter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

valves open when P is…

A

higher below

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

valves close when P is…

A

higher above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

varicose veins

A

veins enlarge in diameter, valves can’t touch, blood pools in these veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

core of valves

A

sub endothelial CT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

deep vs superficial veins: arteries

A

deep veins have accompanying systemic arteries; superficial veins (subcutaneous) don’t have accompanying arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

temperature regulation

A

shunting blood between deep and superficial veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what route back to the RA will blood take if you’re hot

A

superficial; throw off heat (red skin)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what side has brachiocephalic trunk

A

right

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

how many branches of aorta supply head, neck, arms

A

3 (brachiocephalic trunk, left common carotid, left subclavian)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

which part of the descending aorta is NOT paired

A

visceral branches in abdominal aorta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what do the unpaired arteries in the abdomen supply

A

digestive tract (think: 1 for 1 long tube)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what divides the thoracic and abdominal descending artery

A

diaphragm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

what arteries supply the legs

A

R and L external iliac arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

what arteries supply kidney

A

paired abdominal parietal (contained in body wall)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

T or F: all veins are paired in parietal and visceral

A

T; all paired to drain body wall and contained organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

major vein draining into IVC

A

hepatic vein; from liver (and blood from intestines)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

name of system that drains stomach, intestinal blood

A

hepatic portal system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

how many hepatic veins drain into IVC

A

usually 3

32
Q

T or F: there is a vein to drain the stomach (gastric vein)

A

F; goes through liver

33
Q

T or F: only the arterial system has brachiocephalic trunk

A

T; in venous its not called trunk; but has 2 brachiocephalic veins

34
Q

arteries

A

carry blood Away from heart

35
Q

right side of heart -> ____ circulation

A

pulmonary

36
Q

left side of heart -> ____ circulation

A

systemic

37
Q

is circulation in parallel or series

A

parallel

38
Q

circulatory system is delivery system except at

A

capillaries

39
Q

T or F: arteries always carry oxygenated blood

A

F; not in pulmonary arteries (deoxygenated away from heart)

40
Q

4 functions of tunica intima

A

selectively permeable barrier
nonthrombogenic (makes anticoagulants; thromobomodulin, TPA)
modulates vascular resistance (NO, ACE release; but acts on media)
regulate immune response (leukocyte adhesion)

41
Q

what branch of NS innervates tunica media

A

sympathetic

42
Q

what layer has vaso vasorum

A

adventitia

43
Q

T or F: sympathetic innervation of tunica media always causes constriction

A

F; dilation to skeletal muscles, heart; constrict to skin (pale)

44
Q

branches of aorta that are elastic arteries

A

brachiocephalic trunk, common carotids, subclavian, common iliac

45
Q

what tunica has elastin in elastic arteries

A

media

46
Q

form of elastin in elastic arteries

A

fenestrated sheets

47
Q

T or F: you can see elastic laminas in elastic arteries

A

F; inconspicuous

48
Q

how do elastic arteries modulates BP

A

lower systole, bump up diastole

49
Q

what produces elastin in elastic arteries

A

SMCs

50
Q

examples of muscular arteries

A

gastric, renal, skeletal muscle

51
Q

do muscular arteries have IEL and EEL

A

Yes; prominent

52
Q

how many layers of SMCs in small arteries

A

3-6

53
Q

how many layers of SMC in arterioles

A

1-2

54
Q

what vessels change resistance to control BF into capillaries

A

arterioles

55
Q

composition of capillaries

A

endothelium + BM

56
Q

T or F: capillaries may have smaller diameter than RBC

A

T; RBC may bend

57
Q

what cells contribute to capillary repair

A

pericytes

58
Q

3 types of capillaries

A

continuous, fenestrated, sinusoids

59
Q

what type of capillary in lung, brain, muscle

A

continuous

60
Q

what junctions in continuous capillaries

A

desmosomes, tight junctions

61
Q

continuous capillaries: transport method

A

transcytosis

62
Q

where can you find fenestrated capillaries

A

endocrine, small intestine, choroid plexus, kidney

63
Q

function of fenestrae

A

rapid exchange of small proteins

64
Q

how do fenestra form

A

pinocytotic vesicles span membrane

65
Q

T or F: fenestrae are dynamic

A

T; number & size change with activity

66
Q

BM in sinusoids

A

discontinuous

67
Q

function of sinusoids

A

rapid exchange of large solutes

68
Q

where would you find sinusoids

A

liver, spleen, bone marrow, lymph nodes

69
Q

function of large diameter in sinusoids

A

slows BF, more time for molecular exchange

70
Q

function of arteriovenous anastomosis

A

shunt blood from A to V; skip capillary bed

71
Q

where would you find arteriovenous anastomoses

A

skin, erectile tissue

72
Q

what is used in precapillary sphincter to adjust flow

A

SMCs

73
Q

what channel provides direct route from arteriole to venule

A

met arteriole/ throughfare channel

74
Q

circulating ___ provides sympathetic input

A

epinephrine, norepinephrine

75
Q

where does epinephrine come from

A

adrenal glands

76
Q

what 2 molecules vasodilation

A

NO, CO2

77
Q

what tunica controls resistance

A

media; contraction/relaxation of SMCs

ANA300 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions