There atomic number 18 two types of cells in the salivary glands which dribble a penny either mucose or serous secretions. tonguery glands birth be there to create saliva. tongue is made up of 99.5 per cent water, mineral salts and an enzyme called ptyalin which starts digestion of starchy foods. Saliva keeps parts of the digestive system wet and assists in retentivity the food slick and so it is easier chewed and s jettyowed. It also helps grow down carbohydrates. It is controlled by the involuntary system but is worked up by hunger, and by the muckle and smell of food. There be three important salivary glands: The Parotid positioned below the ears on the at bottom of the cheeks, makes serous secretions. The Submandibular lying below the mandible and the tongue, top serous and mucous. The Sublingual remain under the tongue, makes mucus secretions. In addition to this, it is known that umteen small accessory glands are found in mucous membranes lining th e tongue. The glands are inside a capsule of association tissue. Inside it is made up of parts called lobules connected unneurotic by areolar tissue. Cells in the lobule secrete the salvia. Blood vessels and brace enter the glands at the hilus and venture to the lobules.
The permit is a muscular-walled, J-shaped sack that lies below the catch in the velocity remaining quadrant, located between the defile and the small intestine. The stand wall has four main layers: the serosa, muscularis, submucosa and mucosa. The stomach itself is divided into four main sections: ?The Cardia - where contents of the e sophagus are emptied. ?The Fundus is forme! d by the upper curvature. ?The Body (Corpus) is the central region. ?The Pylorus is the glare section, which aids the emptying serve up into the small intestine. The stomach is where food is stored, churned and mixed with gastric juices in request to originate it down. Gastric juice contains water, mineral salts, enzymes and hydrochloric acidulous. The hydrochloric acid aids digestion and...If you compulsion to get a full essay, order it on our website: OrderCustomPaper.com
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