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ANATOMY > LECTURE exam 3- Ch.22 > Flashcards

LECTURE exam 3- Ch.22 Flashcards

1
Q

systemic circulation:
- arteries: O2 ____
- veins: O2 ____

A

rich; poor

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2
Q

pulmonary circulation:
- arteries: O2 ___
- veins: O2 ___

A

poor; rich

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3
Q

_______: walls have 3 layers (or tunica)
- adventitia
- media
- intima

A

arteries & veins

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4
Q

anchor blood vessels in place

A

adventitia
- labeled A

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5
Q

smooth muscle; used in vasoconstriction & vasodilation

A

media
- labeled B

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6
Q

endothelium of vessel

A

intima
- labeled C

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7
Q

most arteries & veins run ____ to each other

A

parallel

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8
Q

walls of arteries are ____ than veins

A

thicker

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9
Q

arteries have ____ smooth muscle than veins

A

more

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10
Q

arteries _____ their circular shape & veins typically ____ when cut

A

maintain; collapse

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11
Q
  • endothelial lining has pleated folds
  • thin elastic fibers in media
  • external elastic membrane surrounding media
  • internal elastic membrane surrounding intima
A

arteries only

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12
Q
  • endothelial lining is smooth
  • many have one-way valves to prevent backflow
A

veins only

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13
Q

a network of elastic fibers located between the intima and the media

A

internal elastic membrane

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14
Q

media is separated from the adventitia by the _____, a band of elastic tissue

A

external elastic membrane

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15
Q
  • elastic
  • muscular
  • arterioles
A

types of arteries

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16
Q
  • largest arteries ~1 inch
  • contain elastic membranes in media & intima
  • very resilient, tolerate pressure changes during cardiac cycle
  • recoil during diastole helps propel blood forward
  • examples: aorta / brachiocephalic trunk / pulmonary trunk
A

elastic arteries

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17
Q
  • medium sized ~ pencil
  • thicker media than elastic
  • vessel diameter under control of autonomic nervous system & hormones
  • examples: external carotid / brachial / femoral / mesentric
A

muscular arteries

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18
Q
  • smallest (microscopic, ~30 microns)
  • very thin adventitia
  • media may have incomplete smooth muscle layers
  • control blood flow b/w arteries & capillaries
A

arteriole

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19
Q
  • smallest of all vessels (~8 microns)
  • most delicate; lack adventitia & media
  • only vessels where material exchange occurs b/w blood & tissues/interstitial fluid
A

capillaries

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20
Q
  • continuous
  • fenestrated
  • sinusoids
A

types of capillaries

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21
Q
  • endothelial lining complete
  • most common
  • single cell lined
A

continuous capillaries

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22
Q

-endothelial lining not complete
-rapid fluid & solute diffusion

A

fenestrated capillaries

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23
Q

-flattened
-endothelial lining NOT complete
-pores & large gaps
-slow blood movement
-diffusion of very large solutes

A

sinusoid capillaries

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24
Q
  • Diffusion across endothelial cells
  • Diffusion through gaps between adjacent endothelial cells
  • Diffusion through pores
  • Vesicular transport
A

capillary exchange

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25
nonpolar solutes; gasses; water via aquaporins
diffusion across endothelial cells (capillaries)
26
small solutes; water; large solutes (in sinusoids)
diffusion through gaps b/w adjacent endothelial cells (capillaries)
27
solutes; water
diffusion through pores (capillaries)
28
water; targeted molecules (bound & unbound)
vascular transport (capillaries)
29
mesh of capillaries; connecting arterioles with venules
capillary beds
30
come together to form arterial anastomosis
collateral arteries
31
allow multiple supply routes to capillary beds
arterial anastomosis
32
contracting or relaxing ____ ____ determines blood flow
smooth muscle
33
-Arteriovenous anastomoses -Thoroughfare channels -Metarterioles
control of capillary flow
34
regulate flow to capillary beds, can bypass a capillary bed
arteriovenous anastomosis
35
regulate blood flow through capillaries; fairly consistent flow
thoroughfare channel
36
precapillary sphincter
Metarterioles
37
- venules - medium-sized - large
types of veins
38
-smallest of veins -collect blood from capillaries -lack or have thin tunica media -very small amount of smooth muscle or none
venule
39
- adventitia is largest layer - contains elastic fibers & smooth muscle - one-way valves are present - found alongside muscular arteries - ex: radial, tibial, popliteal
medium-sized veins
40
-blood returning to heart from lower extremities fight gravity -many medium veins have valves -valves compartmentalize blood in veins
venous valves
41
blood in veins from lower extremities must ascend to heart; fight gravity
venous return
42
-adventitia is the thickest layer & contains some smooth muscle -intima & media are very thin -no valves -ex: Sup / Inf vena cava
large vein
43
veins are ____ vessels - act as blood reservoirs
capacitance
44
_______ of veins shifts blood toward arterial side of circulation
venoconstriction
45
Whats A
vertebral
46
Whats B
right subclavian
47
Whats C
brachiocephalic trunk
48
Whats D
aortic arch
49
Whats E
ascending aorta
50
Whats F
celiac trunk
51
Whats G
brachial
52
Whats H
radial
53
Whats I
ulnar
54
Whats J
palmar arches
55
Whats K
popliteal
56
Whats L
posterior tibial
57
Whats M
anterior tibial
58
Whats N
fibular
59
Whats O
plantar arch
60
Whats P
right common carotid
61
Whats Q
left common carotid
62
Whats R
left subclavian
63
Whats S
axillary
64
Whats T
pulmonary trunk
65
Whats U
descending aorta
66
Whats V
diaphragm
67
Whats W
renal
68
Whats X
superior mesenteric
69
Whats Y
gonadal
70
Whats Z
inferior mesenteric
71
Whats AA
common iliac
72
Whats AB
internal iliac
73
Whats AC
deep femoral
74
Whats AD
femoral
75
Whats AE
descending genicular
76
Whats AF
dorsalis pedis
77
whats A
brachiocephalic trunk
78
whats B
aortic arch
79
whats C
ascending aorta
80
whats D
celiac trunk
81
whats E
brachial
82
whats F
axillary
83
whats G
descending aorta

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