What is the digestive tract? A long continuous tube with food first entering it at the mouth.
What happens to undigested materials in the digestive tract?
Sketch the path that food takes through the digestive tract. Be sure to include the mouth, esophagus, stomach, duodenum, small intestine, appendix, large intestine rectum, and all 4 sphincters.
What is the function of the mouth in the digestion process? The teeth and tongue begin the mechanical breakup of food and mix it with saliva.
What is the term for the small mass of food that enters into the esophagus? bolus
What triggers peristalsis? presence of the bolus in the esophagus triggers peristalsis.
What is the function of the cardiac sphincter? Closes the entrance to the stomach and prevents its contents from re-entering the esophagus
What is the mucous membrane? protective mucous coating which prevents digestion
How long is the small intestine? 20 feet long
Where does most digestion and absorption of nutrients take place? small intestine
What increase the surface area of the small intestine? villi
What is the first section of the small intestine? What is its function?
Where is bile stored? gallbladder
What is segmentation? grabbing of a tube tightly at various places around the middle and squeezing so its contents are broken into smaller pieces.
When does the ileocecal sphincter open? when the food builds up in the small intestin
What is the function of the anal sphincter? Stops waste from leaving body until you make it
What is the function of the appendix in humans?
Where does digestion begin? mouth
What is gastric juice made of? Hydrochloric acid and enzymes
Where are enzymes released in the small intestine produced? the pancreas
What is the function of the following enzymes: amylase, lactase, maltase, sucrase, and lipase? enzymes
There are two ways that nutrients get into the blood stream. Describe each method.
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1 comment:
You are missing numbers 2, 3, 12, 17, 21, and 22. Other than these, you did fine.
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