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EAP HW 22 – The Digestive System Define digestive tract Define accessory organs

ID: 79024 • Letter: E

Question

EAP HW 22 – 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

Explanation / Answer

Digestive Tract, also referred to as alimentary canal or gastrointestinal tract is the long continuous tube that extends from the mouth to the anuus and is a collection of organs that are responsible for converting food into energy.

Accessory organs are organs that are not part of the digestive tract but help in the process of conversion of food to energy and nutrients. These include tongue, liver, pancreas and several other organs.

The six functions of the digestive organs are as follows:

Ingestion, in humans, is the process of taking in food into the mouth. Ingestion in other animals can differ like simple phagocytosis in amoeba.

Mechanical processing, is the breaking of large particles of food into smaller ones by physical activity such as by cutting, chewing, grinding, grasping movement of the teeth and jaws.