VPB 121: Veterinary Physiology - II (2+1)

OTHER STRUCTURES

Liver

• Liver and gall bladder represent accessory structures of the digestive system.
• Metabolic organ, participate in digestion, metabolism and also in circulatory/immune system.
• Special and unique organ as it receives double blood supply, seat of metabolism and is of diagnostic purpose.

Pancreas

• Representing one of the accessory structures of the digestive system secretes clear, colorless liquid representing water, enzymes and salts like sodium bicorbonate.

Small Iniestine

• Has 3 portions Duodenum, Jejunum and Ileum. Concerned with digestion and absorption.

Large intestine

• Has 3 major portions viz. cecum, colon and rectum. Main function includes formation of certain vitamins, completion of absorption, formation of dung and its expulsion.

Gastro-intestinal motility

• The walls of GI tract are muscular and capable of generating slow waves of electrical depolarization which are originated by the presence of food/ingestion as a stimuli from various areas of gut lumen.
• These motility aims to propel ingesta from one area to the other, to promote digestion and to aid absorption.
• Movement popularly known as motility are of propulsive, reventire or mixing.