Heart Worksheet

1. All vertebrates have what type of circulatory system? Closed Circulatory System
2. How does the circulatory system maintain homeostasis? Through water and electrolyte transport, fluid volume control, and regulation of pH and of body temperature.
3. Name 4 functions of the circulatory system. Transport dissolved nutrients to all body cells, maintain homeostasis, carries hormones, and transpiorts gases.
4. What are blood vessels that carry blood away from the heart called? Arteries
5. What are blood vessels that carry blood to the heart called? Veins
6. What is the sac that surrounds the heart called? Pericardium
7. What is the muscular portion of the heart called? Myocardium
8. What is the lining of the myocardium called? Endocardium
9. What is the name of the upper cavities of the heart? The lower cavities? Atrium and Ventricle
10. What veins carry blood to the left atrium? The right atrium? Pulmonary Veins; Superior Vena Cava and Inferioe Vena Cava
11. What arteries carry blood away from the left ventricle? The right ventricle? Aorta;