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Ch 15 review lymphatic

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liveitupsunshine's version from 2017-03-23 19:06

Section

Question Answer
define lymphclear fluid in lymph vessel and tissue
define lymphatic tissueriticular CT, contains lg lymphocytes
3 functions of lymphatic systemdrains fluid, transport lipids to GI tract, immune responces against antigens
2 major cells of lymphatic sysytemBcell and Tcell
3 differances betweem lymphatic system and blood capillariesgreater permability, slightly larger, one-way flow
lactealslymphatic capillaries in GI tract
chylelymph in GI tract
5 trunks and where they drain fromlumbar (lower limbs, kidneys, adrenel glands), intestinal (GI tract and spleen), brochomediastinal (lungs and heart), subclavian (upper limbs), jugular (neck and head)
flow of lymph1)inertsitial fluid 2)capillaries 3)vessles 4)nodes 5)truncks 6)subclavian veins
2 lymphatic ductsright lymphatic and thoracic
marks the beginning of the thoracic duct (lumbar & intestinal)cisterna chyli
structure and location of primary lymphatic organsstem cell devided and able to mpount an immune responce, found in red bone marrow and thymus
structure and location of secondary lymphatic organssite where immune responce occures, found in lymph nodes, spleen, and lymphatic nodules
differance between lymphatic organs and tissueorgans are encapulated in CT
function of dendrite cellsprotien for cortex
function of epithellial cellslies on outer side of cortex
function of thymic (hassal'[s) corpuscleswhere cells die
trabeculeeextention of capsole that devide the thymus into lobules
training posts for immune responcecotrex and medulla (deeper)
stromasupportive CT of lumph nodes
parenchymafunctional region of lymph node (action)
parenchyma structure outer cortexouter cortex, b-cells called lymphatic nodules, primary and secondary L. nodules, germinal center (on secondary) presented antigens, (memory cells and plasma cells
memory cellspresist after immune responce, 'remember' antigens
plasma cellscreate antibodies
parenchyma structure inner cortexno L nodules, no bcells (only tcells and dendrites) T-cell activation, deep is medulla
lymph through lymph noderntes sfferent lymphatic vessle into sinuses, out efferent lymphatic vessles at HILUM
3 sinuses in lymphsunscapular sinus, trabecular sinus, efferent sinus
spleenlargest L organ, encapsiulated, parenchyma (functional protien), white and red pulp
red pulp structureconsists of venous sinuses (filled with blood) and splenic cords (wbc and rbc)associated with splinic veins
white pulp structurelymphocytes and macrophages, arranged around central arteries (branches speinic arterty)
red pulp functionremoval of old damaged RBC, stores platellets (1/3 of total supply), priduction of blood cells during fetal development (red bone marrow as age)
white pulp functionimmune cells activated (bcell-tcell, macrophages) and destroy blood born pathagins
collection of cells scattered (GI, Uranary, repro, resp)MALT ( mucusa-associated lymphoid tissue)
respondes to ingested or inhaled foreign materialtonsils
lymphatic tissue in small intestinepeyer's patches
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