Title: The Human Digestive System- Organs, Functions and Diagram
Headings: The Human Digestive System- Organs, Functions and Diagram
The Human Digestive System- Organs, Functions and Diagram
Table of Contents show
The Human Digestive System Definition
Alimentary Tract of The Human Digestive System
A. Mouth
The Tongue
The Teeth
Types and Functions of the teeth
B. The Pharynx
Function of Pharynx
C. The Oesophagus
Functions of Oesophagus
D. The Stomach
Functions of the Stomach
E. The Small Intestine
Functions of the small intestine
F. The Large Intestine
The caecum
The ascending colon
The transverse colon
The descending colon
The sigmoid colon
G. The Rectum and the Anal Canal
Functions of the large intestine, rectum and anal canal
Absorption
Microbial activity
Defaecation
Video Animation: Human digestive system – How it works! (Thomas Schwenke)
Accessory Organs of The Human Digestive System
A. The Salivary glands
Parotid glands
Submandibular glands
Sublingual glands
Functions of Salivary Glands and Saliva
B. The Pancreas
The exocrine pancreas
The endocrine pancreas
Functions of the Pancreas
Endocrine Function
C. The Liver
Functions of the liver
References
Internet Sources
The Human Digestive System- Organs and Functions

Content: It has two curvatures. The lesser curvature is short, lies on the posterior surface of the stomach, and is the downwards continuation of the posterior wall of the esophagus. Just before the pyloric sphincter, it curves upwards to complete the J shape. Where the esophagus joins the stomach the anterior region angles acutely upwards, curves downwards forming the greater curvature then slightly upwards towards the pyloric sphincter. The stomach is divided into three regions: the fundus, the body, and the antrum. At the distal end of the pyloric antrum is the pyloric sphincter, guarding the opening between the stomach and the duodenum. Stomach size varies with the volume of food it contains, which may be 1.5 liters or more in an adult. In the stomach, gastric muscle contraction consists of a churning movement that breaks down the bolus and mixes it with gastric juice and peristaltic waves that propel the stomach contents towards the pylorus. About 2 liters of gastric juice are secreted daily by special secretory glands in the mucosa.