Chapter 1 : Your Transportation System
Order by
30 terms
Terms | Definitions |
|---|---|
 bloodstream | the pathway that food and oxygen follow throughout your body |
| circulation | the flow of blood throughout the body |
| 50% | the amount of plasma in your blood |
| plasma | the liquid part of blood that carries digested food through your body |
| red blood cells | carry oxygen |
| white blood cells | fight infection and diseases |
| antibodies | fight pathogens (germs) |
| platelets | part of the blood which helps to clot the blood when an injury occurs |
| food & oxygen | travel through the body in the bloodstream |
| cardiac muscle | another name for the heart |
| atrium | upper chamber of the heart |
| ventricle | lower chamber of the heart; |
| valves | door-like flaps that keep the blood from flowing backwards through the heart |
| artery | carry oxygen-rich blood AWAY from the heart |
| pulmonary artery | supplies blood to the LUNGS |
| veins | collect the blood and carry oxygen-poor blood TO the heart |
| venae cavae | two large veins that enter the heart |
| varicose veins | enlarged veins |
| capillary | the smallest blood vessels of the your body |
| scab | a blood clot on your skin where tiny platelets pile up to stop the bleeding |
| aorta | largest artery in the body |
| pulse | what we can feel as the arteries expand after each heartbeat |
| blood pressure | is measured by the pressure of blood against the arteries |
| aerobic fitness | exercise that strengthens your heart |
| target heart rate | the rate your pulse must reach and keep for 20-30 minutes to benefit your body |
| circulatory system | is made of your heart, arteries, veins, capillaries, and blood |
| Ways to improve heart health | 1) Get physically fit. 2) Lower cholesterol. 3)Avoid tobacco & alcohol |
| 3 quarts | the approximate amount of blood in a child's body |
| 5 quarts | the approximate amount of blood in an adult's body |
| Ways to improve sleep | See chart on page 21 - Know 5 of them! |
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