1
What lines the lumen of all vessels?
endothelium
2
Contact tissue cells and directly serve cellular needs
capillaries
3
Sympathetic vasomotor nerve fibers control vasoconstriction and vasodilation of vessels
tunica media
4
regulate blood flow into true capillaries
precapillary sphincters
5
what determines if the precapillary sphincters are open or closed?
the tissue itself
6
Equivalent to cardiac output for entire vascular system
blood flow
7
force per unit area exerted on the wall of a blood vessel by the blood
blood pressure
8
opposition to flow
resistance
9
list three important sources of resistance
1. blood viscosity
2. total blood vessel length
3. blood vessel diameter
10
directly proportional to blood pressue
blood flow