Review for Test 2 (Blood vessels) Flashcards
Systemic circuit
LV–Aorta–EA–MA—arteriole—capilary —smallvenule — small vein— large vein – vena cava — RA—RV
Pulmonary circuit
RV— PA— Lung— Pulmonary capillaries — pulmonary veins — LA—- LV
Tunica intima
Endothelium
Sub endothelium
IEL
Tunica media
EEL
Tunica externa
Vasa vasorum
Ateries have what to control the size of lumen
Circular SM
Veins have lots of which type of SM
longitudinal
What cell type contain Weibel-Palade bodies?
Endothelial
von Willebrand factor is necessary for
platelet aggregation and adhesion
Tunica adventitia is fairly thin with abundant vasa vasorum in which vessel type?
Elastic arteries
Some arterioles connect directly with small venues and bypass the capillary bed .. these are called
arteriovenus anastomoses
Venous and arterial portal systems
Venous – liver, pituitary gland
Arterial – kidneys
In a capillary , the endothelial cells secrete their own
basal lamina which is in contact with surrounding CT
***Almost all material exchange between cells of tissue and blood occurs through the ?
capillary endothelial cell
Pericytes can differentiate into
SM or endothelial cells
Which type of cell is a pericyte
pluripotent
Pericytes are numerous around
post capillary venues
Endothelium and valves of veins is referring to which region
Tunica intima
CT fibers , some SM but less than arteries
Tunica media
Most prominent tunic in medium and large veins , smooth muscle cells are oriented longitudinally in bundles
Tunica adventitia
Post capillary venues are similar in structure to capillary structure with an increase in
reticular fibers and pericytes
***Lymphatic vessels are lined with — and resemble —
endothelium —–small veins in structure
***Lymphatic capillaries lack a continuous basement membrane and are . . . .
more permeable than blood capillaries
Phases of blood clotting
Adhesion
Aggregation
Platelet pro coagulation terminates with removal of fibrin clot
