Human Digestive System Parts and their Functions

What is the path that food takes through the digestive system in your body?

Human Digestive system parts are the liver, glands, stomach, intestines, gallbladder, mouth, etc. There are totally 6 main functions of the Human Digestive System. These processes or functions are:

The Digestive System Parts are mentioned and explained below with the functions of all these parts. The Secretion is also mentioned in the table.

Organ	Function	Secretion
Oral Cavity
Teeth	Mastication, Communication.	None
Lips and Cheeks	Manipulation of food, holding food in position between teeth, communication.	Saliva from buccal glands (only mucous).
Tongue	Manipulation of food, holding food in position between teeth, cleaning of the teeth and the taste.	Some mucous and a small amount of serous fluid.
Salivary Glands
Parotid Glands	Secretion of saliva through ducts to the superior and posterior parts of the oral cavity.	Saliva with amylase.
Sub-Mandibular Glands	Secretion of saliva on the floor of the oral cavity.	Saliva with amylase and mucous.
Sublingual Glands	Secretion of saliva in the floor of the oral cavity.	Mucous saliva only.

Pharynx	Deglutition (movement of food from the oral cavity to the esophagus).	Some mucous.
Esophagus	Movement of food by peristalsis from the pharynx to the stomach.	Mucous.

Stomach (Mechanical mixing of food, enzymatic digestion, storage, absorption)
Mucous cells	Protection of stomach wall by mucous protection.	Mucous
Parietal cells	Decrease in stomach PH.	Hydrochloric Acid
Zymogen cells	Protein Digestion.	Pepsinogen
Endocrine cells	Regulation of secretion and motility.	Gastrin
Accessory Gland
Liver	Secretion of bile into the duodenum.	Bile
Gall Bladder	Bile storage, absorb water and electrolytes into concentrated bile.	None of its own secretion stores and concentrates bile.
pancreas	Secretion of several digestive enzymes and bicarbonate ions into the duodenum.	Trypsin, chymotrypsin, pancreatic amylase, pancreatic lipase, and bicarbonates.
Small Intestine
Duodenal glands	Protection	Mucous
Global cells	Protection	Mucous
Absorptive cells	Secretion of digestive enzymes and absorption of digestive materials.	Enterokinase, amylase, peptidases, sucrose, maltase, lactase, and lipase.
Endocrine cells	Regulation of secretion and motility.	Gastrin, secretin.
Large Intestine
Global cell	Absorption, storage and food movement, protection.	Mucous.