Chapter 12 Flashcards
1
Q
cardiovascular system
A
heart, blood vessels, lungs
2
Q
blood vessels
A
- arteries
- veins
- capillaries
3
Q
Arteries
A
- carry blood Away from heart
- usually thicker than veins
- muscular
4
Q
veins
A
return blood to the heart
5
Q
capillaries
A
-sites of nutrient and gas exchange
(b/w blood and interstitial fluids, diffusion or pressure)
-microscopic
6
Q
blood circulation
A
heart > arteries > arteriole > capillary > venule > vein > heart
7
Q
Veins blood flow mechanisms
A
- gravity
- back flow valves
- contraction of skeletal muscle
- pressure changes
