Soc 16 Flashcards
1
Q
Vasodilation
A
When veins swell up or dilate; widening of the internal diameter (lumen) of the blood vessel to allow increased blood flow.
2
Q
Vasocontriction
A
When veins shrink down; narrowing the internal diameter (lumen) of the blood vessel to decrease blood flow.
3
Q
Cardio- Respiratory
A
The interaction of the heartandlungs to supply oxygen to the muscles during exercise.
4
Q
What happens when your body has to work harder?
A
Muscles require oxygen and nutrients, such as glycoge, carried by the blood.
