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:- 1. Origin and Formation of Bile Pigments 2. Chemistry and Varieties of Bile Pigments 3. Circulation and Fate. Origin and Formation of Bile Pigments: The old and worn-out red blood cells disintegrate and are removed from the circulation by the cells of the reticuloendothelial system; the bone-marrow appears to be the most active [...]