BIOC32H3 : Digestive system physiology summary

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blackrabbit616

7 Mar 2011

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Most absorption takes place in the small intestine. A few substances (i. e. , aspirin; alcohol) can be taken up across the stomach while the large intestine is predominately involved in water reabsorption. Entry of food into the esophagus is regulated by the upper esophageal sphincter while entry of food into the stomach is regulated by the lower esophageal sphincter (which also prevents backflow of food from the stomach to the esophagus. Digestion of carbohydrates begins in the mouth as the salivary glands release salivary amylase into the mouth. However, salivary amylase is inactivated in the acidic environment of the stomach. The small intestine is divided into three regions the duodenum (the region closest to the stomach), the jejunum (the middle region) and the ileum (the region closest to the large intestine). www. notesolution. com. The large intestine consists of the cecum/ascending colon, transverse colon, descending colon and sigmoidal colon.

Related Questions

The GI tract is composed of many organs and structures that store, digest, move and expel food. Each segment has a specific function with the purpose of providing nutrients to the body. In order to perform these functions, structural modifications have been made to the digestive system. Identify at least two organs in the digestive system which have been modified â identify the organ, the modification and the function performed. What do you think the impact on digestion and the body would be if either the stomach, small intestine or large intestine had to be fully or partially removed?

How do animals keep protein digesting enzymes which function indigestive system from destroying the cells that make them in thestomach as well as in the small intestine?

EAP HW 22 â The Digestive System

Define digestive tract

Define accessory organs

Provide the 6 functions of the digestive system

Define ingestion

Define mechanical processing

Define digestion

Define secretion

Define absorption

Define excretion

Provide the 4 layers of the digestive tract AND what types of tissue they are composed of

Define peristalsis

Provide the 3 functions of the tongue

Describe how the ingredients of saliva help breakdown food

Define salivary amylase

Provide the 4 types of teeth found in the human mouth AND their functions

Provide the 4 steps of the swallowing process

Define esophagitis

Provide the 2 types of cells found in gastric glands AND their functions

Define pepsin

Define cephalic phase

Define gastric phase

Define intestinal phase

Does absorption occur in the stomach? Explain.

Define circular folds

Define villi

Define microvilli

Define brush border

What organ is the above picture from?

Most of the important digestive processes are completed in the _________________________.

Define carbohydrases

Define lipases

Define nucleases

Define proteases

Provide the 3 general functional roles of the liver

Provide the function of bile salts

Define emulsification

Provide the function of the gall bladder

Define gallstones

Provide the standard screening test for colorectal cancer

Define diverticulosis

Define diarrhea and what causes it?

Define constipation, what causes it, and how do you prevent it?

Where does carbohydrate digestion begin?

Where does lipid digestion begin?

Where does protein digestion begin?

Define lactose intolerance

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BIOC32H3 : Digestive system physiology summary

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