Skip to main content

Popular posts from this blog

Spleen anatomy

SPLEEN INTRODUCTION  Spleen (Greek splen and Latin Lien) is a lymphatic organ connected to the blood vascular system. It acts as a filter for blood and plays an important role in the immune responses of the body.   Location   Location of spleen (a) in relation to the nine regions of abdomen (b) in relation to the fundus of stomach and the diaphragm The spleen (Latin low spirits) is a wedge-shaped organ lying mainly in the left hypochondrium, and partly in the epigastrium. It is wedged in between the fundus of the stomach and the diaphragm. The spleen is tetrahedral in shape. Dimensions   The spleen is soft, highly vascular and dark purple in colour. The size and weight of the spleen are markedly variable. On an average the spleen is 1 inch or 2.5 cm thick, 3 inches or 7.5 cm broad, 5 inches or 12.5 cm long,7 ounces in weight, and is related to 9th to 11th rihe The odd numbers are 1, 3, 5 are 7, 9, 11. Normally, the spleen i...
Post a Comment
Read more

Large Intestine Anatomy

Large Intestine Features The large intestine extends from the ileocaecal junction to the anus. It is about blind 1.5 m long, and is divided into the caecum (Latin blind pouch), the ascending colon, right colic flexure, the transverse colon, left colic flexure, the descending colon, the sigmoid colon, the rectum and the anal canal. In the angle between the caecum and the terminal part of the ileum, there is a narrow diverticulum called the vermiform appendix (Latin attachment).  The general structure of large intestine is considered first followed by its parts one by one. The structure of the large intestine is adapted for storage of matter reaching it from the small intestines, and for absorption of fluid and solutes from it. The epithelium is absorptive (columnar), but villi are absent. Adequate lubrication for passage of its contents is provided by numerous goblet cells scattered in the crypts as well as on the surface of the mucous membrane. The presence of numerou...
Post a Comment
Read more

Kidney Anatomy

Internal structure of the kidneys seen on a dissected specimen INTRODUCTION The closely packed structure and numerous functions of the kidney illustrate the beautiful workmanship of our creator. It not only applies to the kidney but to each and every part of our body. Synonyms The kidney are also called renes from which we have the derivative renal and nephros from which we have the terms nephron, nephritis, etc Definition Kidneys are a pair of excretory organs located on the posterior abdominal wall, one on each side of the vertebral column, behind the peritoneum. They remove waste products of metabolism and excess of water and salts from the blood, and maintain its pH. Location Location of the kidneys The kidneys occupy the epigastric, hypochondriac. lumbar and umbilical regions. Vertically they extend from the upper border of twelfth thoracic vertebra to the center of the body of third lumbar vertebra. The right kidney is slight...
Post a Comment
Read more