sem 2: Haemodynamics Flashcards
1
Q
what does TPR consist of
A
length
radius
blood viscosity
2
Q
what is the law linked to TPR
A
Poiseuilles law
3
Q
what vessels control TPR
A
arterioles via sympathetic innervation
4
Q
what is the reflex associated with arterioles
A
bayliss myogenic response
maintains circulation to important areas
5
Q
what is viscosity
A
measure of internal friction with concentric shells
6
Q
what does viscosity depend on
A
velocity
diameter
haematocrit
7
Q
what does the venous system function as
A
a resevoir(2/3rd of blood) blood diverted in times of need(sympa innervation)
8
Q
3 ways blood is returned to heart
A
pressure gradient - bernouillis law
thoracic pump
skeletal muscle pump
