6. Circulatory System Flashcards
(7 cards)
1
Q
What is double circulation?
A
Blood flows in two loops: heart to lungs and heart to body.
2
Q
What is the main function of the circulatory system?
A
To transport oxygen, carbon dioxide, nutrients, and waste.
3
Q
What are blood vessels?
A
Tubes that carry blood: arteries, veins, and capillaries.
4
Q
What is the composition of blood?
A
Red cells, white cells, platelets, and plasma.
5
Q
What’s the difference between open and closed circulation?
A
Closed = blood in vessels; Open = blood flows freely in body cavities.
6
Q
What is the difference between systemic and pulmonary circulation?
A
Systemic = heart to body; Pulmonary = heart to lungs.
7
Q
A
