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Unit 3:Resp + Digest

Unit 3: Respiratory & Digestive Systems

Mouth This is where digestion starts; teeth chomp food into smaller pieces
Salivary Glands Produce saliva
Esophagus Connects the throat to the stomach
Stomach Contains acid that dissolves food and kills harmful bacteria
Small Intestine Absorbs the nutrients from the dissolved food
Large Intestine Soaks up salt, water, and minerals from the leftovers
Rectum Stores feces until it is ready to exit the body through the anus
Liver A chemical processing factory that gets rid of toxins, makes bile, recycles old blood cells, makes digestive juices, and stores and makes sugar
Gallbladder Stores bile until it goes to the small intestine
Pancreas Makes enzymes that help digest your food, and makes insulin to control blood sugar levels
Appendix Might store good bacteria that help us digest our food
Pharynx Throat
Trachea Carries air from the pharynx to the bronchi in the lungs
Bronchi Take air from the trachea to the left and right lungs
Alveoli Tiny air sacs in the lungs where oxygen and carbon dioxide are put in and taken out of the capillaries
Bile Chemical produced by the liver that helps your body break down fats
Enzyme Special chemicals that help your body break down food
Pepsin Enzyme in the stomach that helps break down food, especially proteins. Can work in the stomach acid.
Villi Located in the small intestine; absorb nutrients and transfer them to the bloodstream; increase the surface area of the small intestine
Created by: ksdsscience