Soc 15: The Cardiovascular System Flashcards
1
Q
What is cardiovascular?
A
To do with the heart, blood and blood vessels together.
2
Q
What is the cardio respiratory system?
A
The interaction of the heart and lungs to supply oxygen to muscles during exercise.
3
Q
What is vasodilation?
A
When veins swell up or dilate, widening of the internal diameter (lumen) to allow increased blood flow.
4
Q
What is vasoconstriction?
A
When veins shrink down, narrowing the internal diameter of the blood vessel to decrease blood flow. Happens if you are cold.
5
Q
What is vascular shunting?
A
Process that increases blood flow to active areas during exercise by diverting blood away from inactive areas - achieved by vsodilation and vasoconstriction.
6
Q
What are the 3 functions of the cardiovascular system?
A
- Transport oxygen, carbon dioxide and nutrients.
- It helps clot blood.
- It controls the body’s temperature.
