circulatory system Flashcards
1
Q
Heart:
A
Heart: Pumps blood throughout the body.
2
Q
Arteries:
A
Arteries: Carry oxygen-rich blood away from the heart to the body.
3
Q
Veins:
A
Veins: Carry oxygen-depleted blood back to the heart.
4
Q
Capillaries:
A
Capillaries: Tiny blood vessels where the exchange of oxygen, carbon dioxide, and nutrients occurs.
5
Q
b. Role in Physical Activity
A
b. Role in Physical Activity
The circulatory system supplies muscles with oxygen and nutrients during exercise, removes waste products like carbon dioxide, and helps regulate body temperature. Aerobic exercise strengthens the heart and improves circulation, increasing overall cardiovascular fitness.
