Cardiovascular System Flashcards
1
Q
What is the cardio - respiratory system?
A
The interaction of the heart and lungs to supply oxygen to muscles during exercise
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 vasoconstriction?
A
When viens shrink down; narrowing of the internal diameter (lumen) of the blood vessel to decrease blood flow