Lymphatic

Question 1

4 components of lymphatic system

Answer 1

lymph
lymphatic vessels
lymphoid tissue/organs
lymphocytes

Question 2

Functions of the lymphatic system

Answer 2

lipid absorption
fluid recovery
immunity

Question 3

how much interstitial fluid moves out of capillaries

Answer 3

about 20 L/day . and about 17 L/day is able to return directly

Question 4

tissue lining lymphatic vessels

Answer 4

simple squamous sepithelium and basement membrane

Question 5

are lymphatic veels like arteries or veins

Answer 5

veins

Question 6

edema def

Answer 6

build up of fluids in tissues

Question 7

lymphedema def

Answer 7

fluid build up in tissue bcuz lymphatic vessels are blocked

Question 8

elephantiasis def

Answer 8

extremee build up due to round worms

Question 9

when do the valve like flaps in lymphatic capillaries open

Answer 9

if IF pressure is high
close if IF pressure is low

Question 10

ROute f Lymph flow

Answer 10

lymphatic capillaries merge to lymphatic vessles
to lymph nodes
to lymphatic ducts

Question 11

3 layers of lymphatic vessles and tissues in each

Answer 11

1. tunica intima… endothelium and valves
2. tunica media/…. smooth muscle/ elastic fibers
   3.adventitial/externa…. dense irregular ct

Question 12

what are the 2 lymphatic ducts

Answer 12

right lymphatic duct and thoracic duct

Question 13

where do the 2 ducts go to

Answer 13

righ to right subclavian vein
thoracic to abdomen cisterna chyli then left subclavian vein

Question 14

what are lymphoid nodules

Answer 14

dense oval masses of lymphocytes. lacking a CT covering

Question 15

center of lympoid nodule

Answer 15

germinal center
active cell diviasion occuring here in response to antigen

Question 16

what are tonsils

Answer 16

collections of lymphatic tissues, partial connective tissue covering

Question 17

what are the types of tonsils

Answer 17

pharyngeal
palatine
and lingual

Question 18

why can crypts be problematic

Answer 18

because small particles can get trapped in them and lead t infection

Question 19

what are the lympoid organs, which is largest

Answer 19

lymph nodes
thymus
spleen (lagest )

Question 20

are lymphoid organ surrounded by anything

Answer 20

complete CT capusule

Question 21

Lymph node does what

Answer 21

removes abnormal debros/cells within lymph by phagocytes and cleans lymph
initiate immune responses by lympoytes in response to antigens in lymph

Question 22

thymus is wehre and does what

Answer 22

produces t lymphocytes
behine the stermun
really active in childhood, then strinks

Question 23

splleen 4 fxns

Answer 23

remove debris by phagocytosis
initiate mmune response by lymphocytes
blood production and storage
iron storage