Soc 15: The Cardiovacular System Flashcards
1
Q
What is Cardio-respiratory system?
A
The interaction of the heart and lungs to supply oxygen to mucles during excerices.
2
Q
What is cardiovascular?
A
To do with the heart,blood and blood vessels together.
3
Q
What is Vasodilation?
A
When viens swell up or dilate; widening of the internal diameter(lumen) of the blood vessel to allow increased blood flow.
4
Q
What is Vascoconstriction?
A
When veins shrink down; narrowing of the internal diameter (lumen) of the blood vessel to deacrease blood flow.
5
Q
What is vascular shunting.
A
Process that increasws blood flow to active areas during excercise by diverting blood away from inactive areas; achieved by vasodilation and vascoconstriction.
6
Q
Three main functions of the cardiovascular system:
A
- Transports oxygen,carbon dioxide and nutrients
- It helps clot the blood
- It controls the body temprature
