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NYSExam Vocab List 6
Human Systems: Digestive & Circulatory
| Question | Answer |
|---|---|
| digestive system | system that breaks down food into soluble nutrients that can be absorbed into the bloodstream |
| digestive tract | a tube in which food travels through the body |
| accessory organs | produce digestive juices that are released into the digestive tract; pancreas, gallbladder, liver |
| physical digestion | food is broken down into smaller pieces by food is broken down by chewing and by the action of the muscles in the digestive tract |
| chemical digestion | food is broken down by enzymes and nutrients are released to be used by the cells |
| enzymes | chemicals that break down food |
| feces | solid waste material |
| circulatory system | system responsible for transporting nutrients, water, and oxygen to the cells and carrying away wastes |
| blood | liquid tissue containing plasma, red and white blood cells, and platelets |
| plasma | liquid part of the blood that carries dissolved nutrients, wastes, and hormones |
| red blood cells | contain hemoglobin |
| hemoglobin | a chemical pigment that carries the oxygen to the cells |
| white blood cells | fight infection |
| platelets | cause clotting (stop bleeding) |
| blood vessels | a network of tubes through which blood flows |
| arteries | carry blood away from the heart |
| veins | return blood to the heart |
| capillaries | connect arteries and veins; where blood and cells exchange materials |
| lymph | watery part of blood that is in the tissue surrounding the capillaries |
| lymph vessels | where lymph is collected and returned to the blood vessels |