Ch 22 Lec 1 Blood Vessels Flashcards Preview

Anatomy > Ch 22 Lec 1 Blood Vessels > Flashcards

Flashcards in Ch 22 Lec 1 Blood Vessels Deck (75):
0

carry blood away from heart

artery

1

these are exchange vessels

capillaries

2

these return blood to heart

veins

3

blank does not distinguish arteries from veins

oxygen

4

smooth surface for blood flow and simple squamous epithelium

endothelium

5

this provides elasticity to withstand blood pressure changes

connective tissue

6

smooth muscle causes blank and blank in blood vessels

vasoconstriction, vasodilation

7

innermost layer of blood vessel and is endothelium on top of connective tissue membrane

tunica intima

8

middle layer of blood vessel that is the bulk of the wall and has smooth muscle and elastic connective tissue

tunica media

9

outer thin layer of connective tissue that is elastic and collagenous fibers

adventitia (tunica externa)

10

tunica externa attaches artery to blank

surrounding tissues

11

tunica externa have blank which are blood vessels of blood vessels because they are so thick

vasa vasorum

12

arteries are blank and blank

strong, elastic

13

arteries are subdivided into blank

arterioles

14

artery walls are blank than veins

thicker

15

artery lumen appears blank than veins

smaller

16

artery blank can not contract but veins can

endothelium

17

blank arteries and have a large diameter and in areas of high pressure

elastic

18

elastic arteries have a blank which has less smooth muscle and a high percentage of elastic tissue

media

19

two examples of elastic arteries

pulmonary trunk, aorta, carotid, subclavian, common iliacs

20

type of artery that is a large to small diameter and carry blood to skeletal muscles and organs

muscular

21

microscopic continuations of arteries

arterioles

22

arterioles have a blank diameter and adventitia is blank

small, thin

23

arterioles have no external blank membrane

elastic

24

arterioles have no blank

vasa vasorum

25

capillaries consist of only blank

intima

26

capillaries have variable blank

permeability

27

two materials exchanged in capillaries

nutrients, dissolved gases, wastes

28

capillary permeability is maximized by a blank wall and low blank

thin, blood pressure

29

permeability in a capillary is thanks to blank across endothelial cells

diffusion

30

diffusion in capillaries can also be through blank between endothelium

gaps

31

diffusion through blank also provide for permeability in capillaries

pores

32

this type of permeability in capillaries that is active transport

vesicular transport with pinocytes

33

continuous capillaries have many tight blank, blank, and blank

junctions, desmosomes, pinocytes

34

continuous capillaries allow movement by blank diffusion or blank transport

passive, active

35

locations of continuous capillaries

central nervous system, skeletal muscles, lungs

36

capillaries with a Swiss cheese appearance because they have pores

fenestrated

37

two locations of fenestrated capillaries

kidneys, intestines, endocrine glands, choroid plexus

38

capillaries that are specialized for max exchange and have large intercellular gaps and pores

sinusoid capillaries

39

in sinusoid capillaries there is a discontinuous blank membrane which allows cells to blank

basement, enter/exit

40

a network of interconnected capillaries

capillary beds

41

capillary beds are derived from blank

arterioles

42

part of capillary beds that manages blood flow to bed

precapillary sphincters

43

part of capillary beds that are a direct connection through the bed and leads to a thoroughfare channel

metarterioles

44

part of capillary bed that has collateral arteries

anastomoses

45

collateral arteries are two arteries blank

fused

46

in collateral arteries there are twice as much blank that supplies the arteries

blood

47

collateral arteries are found in areas with high blank demands

O2

48

part of anastomoses that has a direct connection between arteriole and venule

arteriovenous anastomosis

49

blood flow may be hindered by posture in blank

arteriovenous anastomosis

50

smallest veins that collect blood from capillaries

venules

51

venules can lack a blank

media

52

venules have a minimal amount of blank sometimes

smooth muscles

53

these are veins that are 2-9 mm in diameter and have thin media

medium sized veins

54

medium sized veins have few smooth blank

muscle fibers

55

great veins, superior/inferior vena cava, and their tributaries are considered blank

large sized veins

56

large sized veins have a blank media

thin

57

large sized veins have a blank blood pressure

low

58

these are flap like structures projecting inward

venous valves

59

venous valves are folds of blank and are found in blank

media, extremities

60

veins have a low blank

blood pressure

61

valves prevent blank flow of blood

back

62

blank helps pump which helps movement of movement of blood through veins

skeletal muscles

63

expansion of the thoracic cavity makes up this pump and is for movement of blood through veins

thoracoabdominal pump

64

blood distribution of the body is blank

uneven

65

oxygenated blood in the arteries make up blank of blood

1/3

66

deoxygenated venous blood makes up blank of blood

2/3

67

veins blank during blood loss

contract

68

the uneven blood flow creates a blank

blood reservoir

69

deoxygenated blood goes to lungs from right ventricle which is called the blank circuit

pulmonary

70

blood is oxygenated in blank capillaries of lungs

alveolar

71

in pulmonary circuit, blood is brought to blank then to blank

left atrium, left ventricle

72

veins are blank in pulmonary circuit

oxygenated

73

arteries are blank in pulmonary circuit

deoxygenated

74

oxygenated blood goes ffrom left ventricle to body in this circuit

systemic