Circulatory System
Name: ______________________ Date: ____________
Write the letter of the matching definition next to each term.
1. ventricle
A. An enclosed volume in the body (plural)
2. pulmonary
B. Any of the minute blood vessels connecting arterioles with venules (plural)
3. stroke
C. A structure in a hollow organ with a flap to insure one-way flow of fluid through it (plural)
4. atrium
D. Any chamber that is connected to other chambers or passageways
5. valves
E. The act of swinging or striking at a ball with a club or racket or bat or cue or hand
6. vein
F. A chamber of the heart that receives blood from an atrium and pumps it to the arteries
7. chambers
G. A blood vessel that carries blood from the capillaries toward the heart
8. artery
H. A sudden severe instance of abnormal ___ function
9. heartattack
I. Either of two large veins that return oxygen-depleted blood to the right atrium of the heart
10. aorta
J. An animal sterol that is normally synthesized by the liver
11. capillaries
K. A blood vessel that carries blood from the heart to the body
12. cholesterol
L. A specialized bit of heart tissue that controls the heartbeat
13. venacava
M. Relating to or affecting the lungs
14. pacemaker
N. The large trunk artery that carries blood from the left ventricle of the heart to branch arteries