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explain the gastric phase - mechanism of secretion of gastric juiceanother 45 of the gastric secretion is discharged in this phase the mechanical
explain cephalic phase or neural phase45 of the total gastric secretion is discharged in this phase the flow of juice occurs before food reaches the
mechanism of secretion of gastric juice there is always a small quantity of gastric juice present in the stomach even when there is no food in the
explain protective and excretory functionprotective function large quantity of mucin is secreted by gastric glands mucin lubricates the food bolus a
explain haemopoietic functiongastric juice contains the intrinsic factor which is essential for the absorption of vitamin b12 vitamin b12 present in
explain the functions of gastric juice - antiseptic actionantiseptic action hydrochloric acid in the gastric juice acts as a barrier to the passage
explain functions of gastric juice - enzyme actionenzyme action pepsin begins the chemical digestion of proteins it converts proteins to peptones the
explain functions of gastric juice - digestive functionas the gastric juice contains water it further liquefies the food swallowed the hydrochloric
explain the functions of stomach1 mechanical function muscular action of the stomach helps in the mixing of food with the digestive juices and also
explain the control of salivary secretionthe autonomic control of saliva secretion occurs in two ways as unconditioned and conditioned reflex what
explain the heat loss and bacteriolytic actionheat loss - this is found in dog sheep etc who do not have sweat glands in very hot climate they
explain the function of saliva -tastefood substances mixed with saliva stimulate the taste buds saliva acts as a solvent and is essential for the
explain the cleansing - functions of salivasaliva is necessary to keep the mouth clean and to keep the structures within the mouth soft and pliable
explain the lubrication of fooddry food enters the mouth it is moistened and lubricated by the saliva before it can be made into a bolus ready for
explain the digestion of foodsalivary amylase or ptyalin acts on cooked starches polysaccharides and changes them into maltose as shown
explain how tongue can sense different tastesour tongue can sense different tastes do you know which are the basic tastes and the areas where these
explain the filiform papillaethese are long and slender and are the smallest of the three types of papillae they are found to be most numerous on the
explain fungiform papillaethese are situated mainly at the tip and the edges of the tongue they have a flat rounded head like fungus the fungiform
explain the circumvallate papillae these are the largest of the papillae about 8 to 12 in number these are arranged in a
explain the structure of tonguethe tongue is a muscular organ it is covered with a mucous membrane the tongue is attached by its base to the hyoid
what is tonguethe tongue is a major organ you will agree that the tongue precisely reflects the state of our digestive system how well you may have
explain accessory organs which help in digestionthe gastrointestinal tract receives various secretions some are secreted from the glands in the
explain nerve supply of the gastrointestinal tractthe gastrointestinal tract is supplied by nerves from both sympathetic and parasympathetic nervous
explain the mucous membranethis layer is lined by the epithelial cells parts of the tract which are subject to mechanical injury the layer consists
explain the submucous layerthis layer consists of loose areolar connective tissue there are lymph vessels plexuses of blood vessels and nerves the