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Science Unit 9 Ch 2
SCIENCE UNIT 9 CHAPT. 2 - VOCABULARY QUIZ #3
| Term | Definition |
|---|---|
| Gills | fish breathe through gills as they swim through the water. |
| Digestive System | the system that breaks down food so cells can use the nutrients. |
| Esophagus | the tube that connects your throat with the stomach. It has rings of muscle that push the food down; one of the only times gravity isn’t involved with downward movement. |
| Stomach | a muscular bag where the food mixes with enzymes & acids to further break down the food. |
| Small Intestine | narrow, but long coiled tube where most digestion takes place, and absorbs nutrients for your cells. |
| Large Intestine | wider, but shorter coiled tube that soaks up water, minerals and wastes. Solid wastes pass out of your body. |
| Liver | food doesn’t pass through the liver, but it makes enzymes, bile, to help with digestion of fats. |
| Gallbladder | food doesn’t pass through the gallbladder, but it stores the bile that the liver makes and secretes it when food passes through the small intestine. |
| Pancreas | food doesn’t pass through, but the pancreas makes chemicals that digest proteins. |
| Excretory System | waste removal (solid, liquid) and keeps the water & salt level in balance. |
| Urinary System | part of the excretory system that removes liquid wastes. |
| Kidneys | main organs of the urinary system; filter waste from the blood, keep water, salt, and calcium in balance. |
| Ureters | 2 thin tubes from the kidneys to the bladder. |
| Bladder | stores the urine and then releases it from the body. |
| Urethra | tube that takes the urine from the bladder to the outside of the body. |
| Reproductive System | makes cells to produce new organisms, and replicate cells. |
| Testes | special reproductive cells in males. |
| Ovaries | special reproductive cells in females. |