In this article we will discuss about the structure of oesophagus with the help of a suitable diagram. The mucous membrane of it consists of stratified squamous epithelium. Just under the mucous membrane, there is another very thin layer of plain muscle, called museularis mucosae. Then comes the inconspicuous submucous coat. It consists of collagenous and elastic fibres. Together with [...]
In this article we will discuss about the anatomical structure of human tongue with the help of suitable diagrams. Tongue (Fig. 9.5) is made up of three elements; epithelium, muscles and glands. The epithelium is stratified and non-cornified. Two types of special structures are seen on it; the papillae (Fig. 9.6) and the taste buds. The taste buds (Fig. 9.7) [...]
In this article we will discuss about the absorption of water and salts in human body. Absorption of Water: Very little water is absorbed from the stomach. Water introduced into the stomach almost immediately passes into the small intestine which is the chief seat of water absorption. The intestinal contents near the ileocecal valve contain the same proportion of water [...]