Lecture 4 Content Flashcards
1
Q
What are the major functions of the circulatory system?
A
- transporting nutrients and hormones to all tissues
- transportinf waste products away from tissues
- maintain constant temperature across body
- maintain homeostasis of all tissues
2
Q
Blood flows in a circut at a rate of ___
A
~5L/min
3
Q
Most of the blood in the body is in ____ circulation
A
Systemic ~85%
4
Q
Blood flow is controlled in reation to ____
A
Tissue needs
5
Q
Cardiac output is controlled by____
A
Artery and vein contraction
6
Q
The ____ and pump blood to all organs
A
aorta and large arteries
7
Q
Arterioles and Capillaries are located ____
A
within organs
8
Q
Blood flow is the:
A
quantity of blood that passes a given point in the cirulation in a given period of time
9
Q
blood flow to organs relates to its ______
A
metabolic needs, not its mass
10
Q
What determined blood flow ?
A
Ohms Law:
1. the pressure difference
2. the resistence of the vessel
