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Health - Ch. 1
Your Transportation System
| Question | Answer |
|---|---|
| powerful muscle that keeps your blood constantly flowing | cardiac muscle |
| the smallest vessels in your body | capillaries |
| collect blood from the capillaries and return it TO the heart | veins |
| the liquid part of your blood | plasma |
| the part of your blood that carries digested food throughout your body | plasma |
| these help fight pathogens (or germs) | antibodies |
| these help your blood to clot | platelets |
| the important mineral that gives the red blood cells their color | iron |
| the type of cells fight that fight infection | white blood cells |
| a blood clot on your skin | scab |
| the upper chamber of your heart | atrium |
| the lower chamber of your heart | ventricle |
| little doorlike flaps that allow or stop blood flow | valves |
| part of your heart that supplies blood to the lungs | pulmonary artery |
| the number of miles of "pipeline" that travel to all parts of your body | 60,000 |
| the continuous flow of blood around and around the body | circulation |
| largest artery in the body | aorta |
| the expanding of the arteries after each heartbeat | pulse |
| two large veins that enter the heart | vanae cavae |
| enlarged veins near the surface of the skin | varicose veins |
| the pressure of your blood against the arteries | blood pressure |
| blood vessels that carry blood AWAY from your heart | arteries |
| a child has this much blood in their body | 3 quarts |
| makes up 50% of your blood | plasma |
| sound of your heart beating is ... | the sound of the valves closing |
| your body needs this much rest each week | one full day |
| be able to name 2 things that help keep the heart healthy | 1)exercise and 2)rest |
| be able to list 4 ways to protect your heart | 1)avoid alcoholic beverages 2)refuse all forms of tobacco 3)lower cholesterol buildup 4)become physically fit |
| the type of cells that carry oxygen | red blood cells |