lymph node ( anatomy)

Question 1

what are the two routes lymphocytes enter lymph node?

Answer 1

afferent lymphatic vessels (10%)

HEVS in deep cortex by process called diapedesis (90%0

Question 2

how many efferent vessels does each node have?

Answer 2

one

Question 3

lymph circulation in lymph node

Answer 3

afferent –> subcapsular sinus –> trabecular sinus –> deep cortex –> medullary sinus –> leave node by efferent vessel

Question 4

HEV have what?

Answer 4

aquaporin 1

Question 5

sub scapular sinus + superficial cortex and trabecular are all made of what?

Answer 5

dense CT

Question 6

storm of lymph node is made of what?

Answer 6

reticular fibers and cells

Question 7

what cells are found in the germinal center?

Answer 7

reticular cells = secrete collagen
follicular dendritic cells
B lymphocytes

Question 8

right upper quadrant drains into

Answer 8

right lymphatic duct

Question 9

rest of body drains into

Answer 9

thoracic duct

Question 10

venous angles between what two veins?

Answer 10

internal jugular and subclavian

Question 11

whats the first line of defense?

Answer 11

diffuse lymphatic tissue

Question 12

where is diffuse lymphatic tissue found

Answer 12

mucous membranes
git
respiratory tract
geniturinary tract

Question 13

what cells does the mucosa / lamina propria contain?

Answer 13

lymphocytes
fibroblasts
eosinophils
plasma cells

Question 14

palatine tonsils are covered by

Answer 14

stratified squamous nonkeratinized epithelium

Question 15

tonsilar crypts are remnants of what?

Answer 15

2nd pharyngeal pouch

Question 16

peyers patches

Answer 16

aggregated lymphatic nodules found in the ileum

Question 17

t lymphocytes are mainly found in the

Answer 17

deep cortex but a little found in superificicial around germinal centers

Question 18

b lymphocytes are found in the

Answer 18

germinal centers in the superficial cortex

Question 19

CD3

Answer 19

T cell marker

Question 20

CD20

Answer 20

B cell marker

Question 21

reticular cells synthesize

Answer 21

type iii collagen and grout substance

Question 22

dendritic cells

Answer 22

APCs
found with t lymphocytes = deep cortex
high level of MHC II
derived from bm