April 9 - April 9, 2008 Extrinsic salivary glands 3 types o...

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April 9, 2008 Extrinsic salivary glands – 3 types o Parotid glands – located in front of the ear Connected to the oral cavity by the parotid or stensers ducts o Submandibular ducts Located anterior the parotid gland along side the mandible Connected to the oral cavity by the submandibular or Wharton’s ducts o Sublingual glands – located below the tongue Connected to the oral cavity by the sublingual or Rivinus ducts Extrinsic salivary gland secrete over 97% of the total volume of saliva Teeth – 4 types of teeth o Incisors – chisel shaped and used in cutting and nipping Adult – 8 incisors o Canines – fang like used in piercing and tearing Adult – 4 canines o Premolars – broad surfaces Adults – 8 premolars o Molars – broader surfaces Adults – 12 molars o Premolars and molars are used for grinding and crushing Teeth – function for mastication (chewing) – mechanical breakdown (pulverization) of large solid food particles into smaller particles o Small particles are mixed with saliva to form a compact structure – bolus – swallowed 2 nd structure of the GI tract – pharynx o The oropharnx and the laryngopharynx have digestive function o Lined with stratified squamous epithelium
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This note was uploaded on 04/20/2008 for the course BSCI 202 taught by Professor Opoku during the Spring '08 term at Maryland.

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April 9 - April 9, 2008 Extrinsic salivary glands 3 types o...

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