digestion

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 đź‘‰ DIGESTION 5

👉name organ take part in digestion and name diffrrnt digestive juice,5mark

👉Digestive agents 4 mark

DIGESTION 5 amrk

digestion is defined as the process by which food is broken down into simple chemical substance that can be absorbed and used as a nutrient by the body.

 • Digestive system is responsible for these functions

 • Digestive process is accomplished by mechanical and enzymatic breakdown of food into simple chemical compounds.

 • Digestive system plays the major role in the digestion and absorption of food substance. Thus , the function of digestive systems includes

 a. Ingestion or consumption of food substances

 b. Breaking them into small particles

 c. Transport of small particles to different areas of the digestive tract

 d. Secretion of necessary in enzymes and other substance for digestion

 e. Digestion of the food particles

 f. Absorption of the digestive product

 g. Removal of the unwanted substance from the body

organ take part in digestion

Two types of organ take part in digestion, they are

 1. Primary digestive organ

 • Mouth

 • Pharynx

 • Esophagus

 • Stomach

 • Small intestine

 • Large intestine

 2. Accessory digestive organ

 • Teeth

 • Tongue

 • Salivary glands

 • Exocrine part of pancreas

 • Liver

 • Gall bladder

Different types of digestive juices

 1. Secretion of salivary gland

 It contains following enzyme

 • Salivary amylase

 • Maltase

 • Lingual lipase

 2. Gastric juice

 It contains following in enzymes

 • Pepsin

 • Gastric lipase

 • Gastric amylase

 • Gelatinase

 • Urase

 3. Pancreatic juice

 It contains following enzyme for digestion of protein

 • Trypsin

 • Chymotrypsin

 • Carboxypeptidase

 • Nuclease

 • Elastase

 • Collagenase

 It contains following enzyme for digestion of fats

 • Pancreatic lipase

 • Cholesterol ester hydrolase

 • Phospholipase A

 • Phospholipase B

 • Colipase

 • Bile-salt-activated lipase

 It contains following enzyme for digestion of carbohydrates

 • Pancreatic amylase

 4. Secretion from gallbladder and liver

Digestive agents (gastrointestinal agent)

Digestive agents or gastrointestinal agent are the drugs use for their effect on GI system, to control gastric acidity regulate gastrointestinal motility and water flow and improve digestion.

Types of Gastrointestinal agents:

 • 5-aminosalicylates

 • antacids

 • antidiarrheals

 • digestive enzymes

 • functional bowel disorder agents.

 • gallstone solubilizing agents

 • GI stimulants

 • H. pylori eradication agents


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