The Digestive System

Learn the digestive system! Label diagrams, fill blanks, and classify organs in this high school biology worksheet.

What is the function of the digestive system? To make bile to help digest food To help convert food into energy and get rid of waste To make saliva so that food can be easily absorbed To absorb the water and turn the waste into a solid Label the parts of the digestive system using the word bank below.Look carefully as to where the lines are pointing. The diagram in the teacher slideshow should be helpful. Please type the words in exactly as I have them written in order to for it to be counted correct.Word Bank: EsophagusStomachLiverGallbladderPancreasSalivary glandsMouthAnusSmall intestineLarge intestineRectumAppendix mouth salivary glands esophagus stomach liver gallbladder pancreas large intestine small intestine appendix anus rectum Fill in the blanks using the word bank. Food starts to move through your GI tract when you eat. When you swallow, your tongue pushes the food into your throat. A small flap of tissue, called the epiglottis, folds over your windpipe to prevent choking and the food passes into your esophagus.Once you begin swallowing, the process becomes automatic. Your brain signals the muscles of the esophagus and peristalsis begins.After food enters your stomach, the stomach muscles mix the food and liquid with digestive juices. The stomach slowly empties its contents, called chyme, into your small intestine.The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream. As peristalsis continues, the waste products of the digestive process move into the large intestine.Waste products from the digestive process include undigested parts of food, fluid, and older cells from the lining of your GI tract. The large intestine absorbs water and changes the waste from liquid into stool. Peristalsis helps move the stool into your rectum.The lower end of your large intestine, the rectum, stores stool until it pushes stool out of your anus during a bowel movement. Digestive Tract Organs vs. Accessory Organs Classify each item below as either part of the Digestive Tract or Accessory Organ group. Food actually passes through organs in the digestive tract whereas food does not pass through the accessory organs...these organs just add digestive juices to help with digestion. Digestive Tract Comes into contact with materials passing through mouth esophagus stomach small intestine large intestine anus pharynx Accessory Does not come into contact with material passing through, but aids in digestion liver gallbladder salivary glands pancreas