terminology

2. The specific view or angle of the heart’s electrical activity, recorded by placing electrodes on the body.
5. The upper chambers of the heart that receive blood (right atrium receives deoxygenated blood, left atrium receives oxygenated blood).
7. The complete sequence of one heartbeat, including systole (contraction) and diastole (relaxation).
8. The rhythmic expansion of an artery caused by the beating of the heart, felt at certain points on the body (like the wrist or neck).
9. The thick, muscular middle layer of the heart wall that contracts to pump blood.
11. Specialized heart tissue that helps control electrical conduction .
12. The process by which electrical impulses travel through the heart, coordinating contraction.
14. test that records the electrical activity of the heart over time, showing how well the heart is working.
16. The phase of the heartbeat when the heart contracts and pumps blood out of the chambers.
18. The force of blood pushing against the walls of the arteries, measured in systolic (contraction) and diastolic (relaxation) pressures.
19. The number of times the heart beats per minute.

1. The lower chambers of the heart that pump blood out (right ventricle pumps to lungs, left ventricle pumps to the body).
3. The largest artery in the body, carrying oxygen-rich blood from the left ventricle to the rest of the body.
4. The delivery of blood (and oxygen) to tissues and organs through the capillaries.
6. Refers to the heart and blood vessels together, forming the circulatory system.
10. The phase of the heartbeat when the heart muscle relaxes and the chambers fill with blood.
13. The smallest blood vessels where exchange of oxygen, carbon dioxide, nutrients, and wastes occurs between blood and tissues.
15. A blood vessel that carries blood back to the heart (usually deoxygenated, except pulmonary veins).
17. A blood vessel that carries blood away from the heart (usually oxygenated, except pulmonary arteries).
20. Another way of saying Electrocardiogram (see above).