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Cardiovascular
| Term | Definition |
|---|---|
| cardiovascular system | comprises the heart, blood, and all the blood vessels that circulate blood through the body |
| circulatory system | carries (transport) oxygen, food, and wastes throughout the body; heart, blood vessels, and blood make up this system |
| circulate | flow of air |
| air | what we breathe; gases around us |
| aorta | artery leaving the heart and going to the rest of the body |
| autonomic | carries out the activities of our body without thinking |
| artery | takes the blood from the heart to the body; thick walled muscular tubes |
| blood | liquid that transports oxygen, carbon dioxide, hormones, nutrition, and waste |
| blood vessels | like highways along which blood moves through the body |
| bone marrow | spaces in the large bones of the body contain soft connective tissue; red blood cells are produced here |
| capillary | narrow tubes that go from the arteries to the veins; thin and carry blood to our tissues |
| carbon dioxide | move from cells to the blood; breathed out of our body |
| heart | muscle beats voluntarily; 4 chambers takes blood in and out of the lungs, to the body, and receives blood |
| oxygen | taken into your blood and used by your entire body |
| pulmonary artery | the artery that leaves the heart and enters the lungs; the only artery that carries blood with a low amount of oxygen |
| pulse | heart must push blood through your body faster during physical exercise to supply it with the oxygen it needs; you can tell how fast your heart is beating by finding this |
| red blood cells | solid part of the blood; have hemoglobin which carries oxygen around the body |
| valve | open and then close tightly to keep blood moving in the same direction through your circulatory system |
| vein | (vena cava) take the blood from the body to the heart |
| ventricle | send blood to the arteries |
| atria | receive blood entering the heart |