Circulatory System

3. One of two or more versions of a genetic sequence at a particular region on a chromosome
5. heart chamber that receives blood into the heart and drives it into a ventricle
6. a fluid filled cavity in the heart or the brain
7. help to stop the bleeding and forms blood clots
8. the thin, smooth membrane which lines the inside of the chambers of the heart and forms the surface of the valves
11. the tightening of blood vessels
14. a procedure to connect healthy sections of tubular structures in the body after the diseased portion has been surgically removed
15. my full name
16. the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood
18. the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment

1. the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries
2. the muscular layer of the heart
3. a blood protein produced in response to and counteracting a specific antigen
4. one way inlets for blood transport
5. a marker that tells your immune system whether something in your body is harmful or not
8. the outermost protective layer of the heart
9. the releasing of stress of blood vessels
10. main artery of the body, supplying oxygenated blood to the circulatory system
12. the genetic makeup of an organism
13. a record or display of a person's heartbeat produced by electrocardiography
17. very small vessels that connect arterial and venous circulation and allow efficient exchange of nutrients and wastes between the blood and tissues