Lecture 26: Venous, Portal, and Lymphatic Systems Flashcards Preview

Structures (ASV) > Lecture 26: Venous, Portal, and Lymphatic Systems > Flashcards

Flashcards in Lecture 26: Venous, Portal, and Lymphatic Systems Deck (75):
1

organs and tissues of lymphatic system

thymus, lymph nodes, spleen, tonsils, lymphoid follicles

2

functions of lymphatic system organs/tissues

immunity, defense

3

lymph system vessels, in increasing diameter

capillaries, vessels, trunks, ducts (thoracic, right lymphatic), sac (cisterna chyli)

4

functions of lymphatic vessels

drain and transport lymph (including transport of fat absorbed by small intestine)

5

what is lymph

fluid, formed in extracellular spaces of tissues and organs

6

where is lymph

flows in lymphatic vessels, adds to venous blood circulation

7

what does lymph contain

plasma proteins, antigens, antibodies, fat, lymphocytes

8

2 classifications of lymphatic vessels

deep, superficial

9

deep lymphatic vessels location

beneath deep fascia, accompany main arteries

10

deep lymphatic vessels function

drain lymph from skeletal muscle, internal organs

11

superficial lymphatic vessels location

superficial fascia of skin - camper's fascia

12

superficial lymphatic vessels function

drain lymph from skin and its associated structures

13

lymph nodes' location

along the course of lymphatic vessels

14

size/shape of lymph node

a kidney bean or green pea

15

what do all lymphatic vessels have?

valves

16

where does thoracic duct pass

through aortic hiatus of diaphragm; along vertebral column; through thoracic cavity; to upper part of thorax

17

lacteals

lymphatic capillaries of the small intestine

18

chyle

milky lymph, result of chylomicrons released into lacteals that form chyle

19

where are lacteals

the center of the villi of lymphatic capillaries

20

where does intestinal lymphatic trunk drain lymph

into cisterna chyli

21

which organs' lymph drains into cisterna chylia, via intestinal lymphatic trunk?

stomach, pancreas, spleen, liver

22

where does SVC return venous blood?

from all structures SUPERIOR to the DIAPHRAGM

23

where does IVC receive blood from?

all structures INFERIOR to the DIAPHRAGM, except the: stomach, small intestine, large intestine, pancreas, spleen, gall bladder

24

do portal veins/its tributaries have valves?

NO

25

does lymph enter the venous or arterial system?

ONLY VENOUS

26

where is lymph transported to

lymphatic capillaries > lymphoid cells

27

where do lymphoid cells drain into

afferent lymph vessel

28

what does lymph exit lymph node through?

efferent lymphatic vessel

29

what are the largest lymphatic vessels

cisterna chyli, thoracic duct

30

vertebral level of cisternal chyli

L1-L2

31

L side lymphatic duct

thoracic duct

32

R side lymphatic duct

R lymphatic duct

33

where is chyle transported from

small intestine > thoracic duct

34

where does fat go for absorption

jejunum

35

what do chlyomicrons do

process fat absorbed by jejunal cells; then release it into lymphatic system to produce chyle

36

what drains into cisterna chyli from below

intestinal lymph trunk, lumbar lymph trunk

37

what drains into cisterna chyli from above

descending thoracic lymph trunk

38

where does thoracic duct empty lymph into venous circulation?

venous angle: where internal jugular vein - subclavian vein meet

39

where does thoracic duct receive lymph from, in thorax region?

L jugular trunk, L subclavian trunk, broncho-mediastinal trunk

40

where does right lymphatic duct receive lymph from?

R jugular trunk, R subclavian trunk, broncho-mediastinal trunk

41

what body area drains to the right lymphatic duct?

right upper quadrant (R side head, neck, thorax, R lung, R side of heart, R upper limb)

42

what body area drains to thoracic duct?

L side of head, beck, thorax, L lung, L side heart, trachea, esophagus, L upper limb

43

where do scrotum/labium majus drain lymph to?

superficial inguinal lymph nodes

44

where does testis drain lymph to?

lateral aortic (lumbar) lymph node, preaortic lymph node, then to cysterna chyli and thoracic duct

45

where does 75% of breast lymph drain to?

axillary lymph node

46

where does remaining 25% of breast lymph drain to?

clavicular lymph node, parasternal lymph nodes, abdominal lymph nodes

47

where is the SVC

superior mediastinum

48

SVC function?

returns venous blood from all structures superior to diaphragm to the heart

49

where do L and R common iliac veins join, what do they form?

form the IVC at L4 vertebral level

50

how many lumbar veins?

5

51

where do lumbar veins drain?

IVC

52

where does testicular vein drain?

L2-L3 level of IVC

53

where do L testicular and orvarian veins drain?

L Renal vein

54

comparison of L to R Renal vein?

left is 2x longer than right

55

location of right suprarenal v?

vertebral level L1-L2

56

where does L suprarenal vein go?

L Renal V

57

where is the R inferior phrenic vein, what does it do?

drains diaphragm, to IVC
T12-L1

58

which structures inferior to the diaphragm DO NOT drain into the IVC?

stomach, small intestine, large intestine, pancreas, spleen, gall bladder

59

how does venous blood from stomach, small intestine, large intestine, pancreas, spleen, gall bladder get to the IVC?

via portal vein, liver, hepatic veins

60

azygos vein system function?

form collateral pathway between IVC and SVC

61

on R side, azygos vein system?

azygos vein

62

on L side, azygos vein system parts?

hemiazygos vein, accessory hemiazygos vein

63

where are lumbar veins

posterior abdominal wall

64

what does ascending lumbar vein connect?

L5, 4, 3, 2, 1

65

azygos system of veins drain (3)

posterior abdominal and thoracic walls, esophagus, lungs

66

posterior abdominal wall vein?

lumbar veins

67

thoracic wall vein?

posterior intercostal veins

68

esophagus vein?

esophageal veins

69

lung vein?

bronchial veins

70

definition of hepatic portal circulation

vein between 2 capillaries

artery > capillaries > portal vein > liver capillaries (sinusoids) > hepatic veins > heart

71

where are 2 sets of capillaries of hepatic portal system

first in abdominal viscera, second in liver

72

what kind of blood does hepatic portal system carry

venous blood, low in oxygen, rich in nutrients

73

portosystemic anastomoses

1. left gastric v (portal) - esophageal branch (systemic)

2. superior rectal v - middle rectal v (lower part of rectum)

3. superficial epigastric v - paraumbilical v (in camper's fascia)

74

do portal vein/ its tributaries have valves?

no!

75

fibrotic nodules

develop on cirrhotic liver
sinusoids inside liver compromised/blocked; blood can't flow to liver; blood goes through anastomosis of porto-hepatic system, esophageal branch of L gastric v - azygos v