CONNECTIVE TISSUE -till bone Flashcards
most abundant tissue
connective tissue
what does all cells of ct secrete and an exception
fibres , blood cells
types of cells
fibroblast cell macrophage mast cell adipose cell plasma cell , cartwheel cell lymphocyte mesenchymal cell
description of fibroblast cell
most abundant , rich in rer , forms osteoblast and chondrioblast , chief matrix producing cell , secrete fibre ,centralised and spherical nucleus , branched , irregular
macrophages
phagocytic, scavenger cell, Rich in lysosomes , 2nd abundant , 2nd largest , kidney shaped nucleus
examples of macrophages
brain-microglial cell blood-monocytes lungs-dust cell liver-kupffer cell Thymus -Hassels corpuscles Spleen - reticular cell
mast cell
s shapes nucleus , trilobed , irregular , like basophils of blood
what do mast cell secrete
Histamine , serotonin , Heparin
function of histamine
vasodilator, allergic and inflammatory response , amino acid derivative (histamine )
function of serotonin
vasoconstriction , at the site of injury , aa derivate (5-hydroxy tryptamine )
function of heparin
mucoploysaccharide , natural anticoagulant
adipose cell describe
store fat, oval shaped , secrete leptin hormone : regulates fat balance
types of adipose cell
monocular and multi ocular
plasma cell or cartwheel cell description
chromatin material in the wheel , factory of antibodies , clone of lymphocytes
mesenchymal cell
totipotent
lymphopcyte
amoeboid shape , large and spherical nucleus
types of fibres
collagen , elastin and reticular
differentiate between fibres
hydrolysed examples
collagen pepsin packing fibres
elastin trypsin Blood vessels
reticular proteolytic enzymes spleen, lymph node, payers patches
another name for reticular. fibres
arzyrophil fibres
special features of elastin protein.
resistant to chemicals and elasticity
types of connective tissue
loose ct-areolar and adipose
dense ct -WFCT AND YFCT
specialised ct- fluid and skeletal
loose connective tissue
fibreless
loose arranged
abundant matrix
describe areolar ct
max. intercell space irregular arrangement of fibres macrophage , fibroblast , mast cell reticular fibre absent collagen fibre max. elastic fibres few function-support
examples of areolar ct
perimysium -covering of bundle of muscle fibres
endomysium-single muscle fibres
endoneurium-single nerve fibre
Tela subcutánea /Panniculus Carnossus -thin layer connecting skin to muscles
Sub-mucosa of trachea , bronchi and intestine
function of adipose ct
store fat