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Ch. 23

Terms in this set (13)

Leptin
An appetite suppressant secreted by adipocytes; plays a key role in the lipostat theory of appetite control
Three division of the small intestine
Duodenum, jejunum,and ileum
List part of the colon
The colon is divided into the ascending, transverse, descending and sigmoid
list four function of the digestive system
Ingestion, digestion, absorption, and elimination
Peristalsis
Muscle contraction that move food through the digestive tract from the mouth toward the anus
layer of the digestive tract
Mucosa, Submucosa, and muscle layer
Mechanical digestion
The breakdown of large food particles into smaller pieces by physica means
Chemical digestion
The chemical alteration of food
Digestive system (alimentary canal) gastrointestinal tract (GI)
Is hollow tube that extending from the mouth to the anus
Mucosa
Innermost layer of the digestive tract;gland secrete mucus, digestive enzymes and hormones
Submucosa
A thick layer of loose connective tissue, 2nd layer of the digestive tract; contain blood vessels, nerver, glands and lymphatic vessels
Muscle Layer
The third layer of the digestive tract; responsible for several types of of movements; repeated contraction and relaxation of the stomach muscle mechanically digest the food and mix the particles with digestive juices
Paralytic ileus
Food gas and liquid accumulat within the digestive tract- backup
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