Lecture9 - Saliva Production Ruminants produce large...

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Saliva Production Ruminants produce large amounts of saliva, which is alkaline and well buffered. Nasolabial Glands – small glands in the muzzle that produce a watery secretion which keeps the muzzle moist. Cattle deliberately mix nasolabial gland secretion with feed during chewing and lick their muzzle during rumination. Chemical properties of nasolabial secretions are similar to saliva. Amylase is present in nasolabial secretions.
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Saliva Production Three pairs of glands produce most of the saliva: Parotid Mandibular (or submaxillary) Sublingual Additional salivary glands: Buccal Labial Pharyngeal glands Buccal Buccal Sublingual Sublingual Mandibular Mandibular Parotid Parotid
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Saliva Production Saliva glands are classified by the type of saliva they produce: Serous – thin, watery saliva containing protein, but no mucin Parotid, Ventral Buccal Mucus – thick, slimy saliva containing the glycoprotein mucin.
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