Title: Human Digestive System | Digestive Glands | PMF IAS
Headings: Human Digestive System | Digestive Glands
Human Digestive System | Digestive Glands
Table of Contents
Human Digestive System
Alimentary Canal
Buccal Cavity or Oral Cavity – Teeth, Tongue, Saliva
Foodpipe/Oesophagus
Stomach
Small intestine
Large intestine
Ingestion → Digestion → Absorption → Assimilation → Egestion
Layers of Alimentary Canal
Digestive Glands
Salivary glands
Liver
Pancreas
Digestion – Enzyme Action in Stomach
Digestion – Enzyme Action in Small Intestine
Absorption of Digested Products
Summary of Absorption in Different Parts of Digestive System
Disorders of Digestive System

Content: The stomach, located in the upper left portion of the abdominal cavity, has three major parts – a cardiac portion into which the oesophagus opens, a fundic region and a pyloric portion which opens into the first part of small intestine. Small intestine
Small intestine is distinguishable into three regions, a ‘C’ shaped duodenum, a long coiled middle portion jejunum and a highly coiled ileum. The opening of the stomach into the duodenum is guarded by the pyloric sphincter. Ileum opens into the large intestine. The small intestine is highly coiled and is about 5 meters long. It receives secretions from the liver and the pancreas. Besides, its wall also secretes juices. The digested food passes into the blood vessels in the wall of the intestine. This process is called absorption. The inner walls of the small intestine have thousands of finger-like outgrowths.