| A | B |
| The wavelike motion that moves food through the digestive system | parastalsis |
| the average human intestinal tract is __ feet long | 20 |
| what structure has no function in humans, but breaks down grass in grazing animals? | appendix |
| Bile breaks down | fat |
| Saliva breaks down | starches |
| the fingerlike projections in the liver are | villi |
| villi do what | absorb nutrients |
| the small intestines absorb | nutrients |
| the large intestines absorb | water |
| Incisors | cut |
| canines | rip and tear |
| molars | chew |
| the ___ prevents food from entering your trachea | epiglottis |
| when pebble sized calcium ions, salts and other chemicals crystallize in your liver you have | kidney stones |
| Some older men may have an enlarged __, which causes frequent urination | prostate |
| The __ stores bile. | gall bladder |
| the stomach contains what two things | pepsin and hydrochloric acid |
| When food backs up into the esophagus you have __. | heartburn |
| name three organs besides the kidney/bladder that excrete wastes from your body | lungs, skin and liver |
| Urine is made up of what three things | water, salt and urea |
| the pancreas breaks down what three things | starches, proteins and fats |
| The two types of digestion are... | Chemical |
| The two types of digestion are... | Mechanical |
| T or F.. The kidneys are the only organs of the excretory system. | False |
| What is the name of the chemicals in the body that speed up chemical digestion? | enzymes |
| Which organs produce urine? | kidneys |
| Which organ produces bile? | liver |
| A person with glucose in their urine might have... | diabetes |