Flashcards in Blood vessels Deck (22)
Repels blood cells and platelets.
with damage secrete chemicals that attract platelets.
During inflammatory response, express cell adhesion molecules
vasomotion: dilation or constriction (by vasomotor chemicals or stimulation of vasomotor center.
CT layer that often blends companion vessels and anchor surrounding organs. Contains vasa vasorum.
Increased elastic fiber throughout tunics for stretch and recoil. This maintains BP during ventricular diastole.
75% of wall is muscular. Most named arteries
Drains into capillary bed
Endothilium +basement membrane.
complete cell layer with intracellular clefts
complete but contain fenestrations for passage of small solutes,
absorption and filtration
Allow large solute out. ex. bone marrow, liver and spleen , some endocrine glands
open: perfuse capillary bed.
Closed: flow from metarteriols to thoroughfare channels and bypass capillary bed.
smallest vein : no valves in TI
Small to medium vein
Valves in TI. low on smooth muscle, getting more CT in TE
Valves. more smooth muscle, thick TE
Simple circulatory route
heart > Arteries> arterioles> Capillary bed>venues>veins> heart
several arterioles converge and drain into one capillary bed
Capillary bed drain into several venules
shunt. bypass capillary bed
allows for exchange of substances between blood and surrounding tissue. Diffusion, transcytosis, bulk flow
passive process. move from areas of high concentration to areas of low concentration
endocytosis to bring in substances pass through cytoplasm and released by exocytosis on other side of cell