The Salivary Glands Essay

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The salivary glands make saliva. Saliva keeps the mouth and other parts of the digestive system wet. It also helps break down carbohydrates (with salivary amylase, formerly known as ptyalin) and keeps food wet and slippery so it can go down from the oro-pharynx to the esophagus to the stomach. There are three main pairs of salivary glands. They are the parotid, the submandibular and the sublingual glands. There are also many small glands in the tongue, cheeks, lips and palate. All of those glands make mucous. Contents [hide] 1 Histology (The cells in the salivary gland) 1.1 Classification(Different kinds of salivary glands) 1.2 Structure (How the salivary glands are built) 2 Where are the glands? 3 Role in disease 4 Diagnostic investigation 5 Other websites [change] Histology (The cells in the salivary gland) There are two types of epithelial cells in salivary glands. They make either mucous or serous secretions. The parotid gland makes serous secretions. The submandibular and submaxillary glands have both types of cells. They make a mixture of mucous and serous. [change] Classification(Different kinds of salivary glands) The three types of salivary glands are serous mixed and mucous glands. The parotid gland is the only serous gland. This gland makes serous secretions only. It has cells called serous acini. The submandibular glands are mixed glands. They give serous and mucous. These glands have serous acini and mucus acini cells. The sublingual glands make mucus secretions. They have only mucous acini cells. [change] Structure (How the salivary glands are built) The glands are inside a bag, called a capsule, of connective tissue. Inside, it is made of little parts called lobules. Blood vessels and nerves go into the glands at the hilum and go out into the lobules. There are 3 main types of cells in the major

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