Hard Histology Flashcards
what is the lamina propria
non cellular polysarrhirde layer
what is the lamina propria composed of
Laminin
type 4 collagen
encatin
what can the cytoskeleton attach to
each other or to the cell membrane
what does the cytoskeleton create
a 3d internal scaffolding
how big is the microvilli
0.5 - 1 um
how big is the cilia
10 um long
what is keratin
tough structural proteins
what is exocrine
secrete product onto the surface of the lumen via the duct
what are the components of the extracellular matrix
fibres
ground substance
tissue fluid
what does most of the connective tissue come from
mesoderm
where does head connective tissue come from
neural crest ectoderm
what do active fibroblasts do
rapidly proliferate forming ECM fibres
fibrocytes (inactive) do
mature connective tissue that is inactive and immobile
what does acitve fibroblasts have alot of
RER and Golgi apparatus
what is the size of the active fibroblasts nucleus
large nucleus
what is the size of the adipose
50 - 150 um
what is the diapedesis
leukocytes squeezing themselves between between endothelial cells of blood vessels
what forms macrophages
monocytes of bone marrow
some derived from mesenchyme
what is the size of marcophages
10 - 30 um
what is the function of marcophages
clean up dead cells
what is the size of mast cells
20 - 30 um
what is the cytoplasm is filled with in mast cells
basophilic secretory granules
what is the size of the nucleus of mast cells
small nucleus
what is the function of the mast cells
release inflammatory mediators ~ histamine
what is hparin
anticorngulant
what is histamine
increases permeability pf msall vessels
what is lympochyte (cytoplasm and nucleus)
small nucleus no cytoplasm surrounding it
what is the phillic of plasma
why is that
basophilic due to RER
why is the lymphocyte a clock face
peripheral region of heterchromatin with the light areas of euchromatin
what is the function of lymphocyte
produce antibodies and circulate them around the body
