week 8 blood pressure Flashcards
1
Q
what is pulse pressure
A
difference between systolic and diastolic pressure
2
Q
what are 3 things that control blood flow
A
blood viscosity (thickness of blood)
vessel length
vessel diameter
3
Q
what is the total peripheral resistance
A
the sum of all pressures of the circulatory system
= arteries arterioles, capillaries, venules and veins
4
Q
what happens if we increase the pressure gradient in terms of blood flow
A
flow will increase
5
Q
what is the mean artieral pressure equation
A
MAP = cardiac output x total peripheral resistance
6
Q
what are the two things that happen to control arteriole radius
A
- extrinsic factors
sympathetic nevous system
hormones - intrinisic factors
