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19 Cards in this Set
- Front
- Back
salivary glands are classified as |
duct exocrine pure serous pure mucous mixed |
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salivary glands produce a... |
colorless fluid called saliva which is introduced into the oral cavity through ducts |
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embryonic origins: |
formed from epithelium that lines the oral cavity endoderm epithelium grows downward into underlying CT as epithelial cells multiply, they modify and specially into cells of salivary glands |
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specialized cells of salivary glands |
some into secretory cells other into ducts |
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two types of secretory cells |
serous mucous |
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serous |
secretory product of these cells contains the enzyme amylase breaks down starches |
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mucous |
secretory product of these cells is mucin lubricant |
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salivary glands also secrete... |
proteins and salts that act as a buffer |
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functions of saliva |
assist in mastication serves as solvent contributes to digestion of carbs lubricates food and oral tissues buffer inhibits growth of microorganisms |
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distribution of salivary glands (2) |
major salivary glands minor |
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major |
usually paired parotid submand sublingual |
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minor |
vary in size widely distributed beneath the oral mucous membranes |
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parotid gland |
located below and in front of the ear largest of salivary glands involved in parotitis or "mumps" stenson's duct opens in the oral cavity opposite the max 2nd molar serous secretory cells |
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submand gland |
beneath post. border of tongue combo of srous and mucous secretory ells serous cells more numbers ducts in oral cavity open beneath the ant. portion of the tongue wharton's duct |
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sublingual glands |
beneath mucosa on floor of mouth, ant. to submand gland combo of serous and mucous mostly mucous bartholin's ducts open along the crest of the plica sublingualis |
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minor salivary glands |
described according to location beneath mucous membrane of cheeks and lips palate post. part otongue |
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beneath mucous membrane of cheek and lips |
mix of mucous and serous mostly mucous |
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palate |
larger glands entirely mucous |
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post. part of tongue |
ebner glands empty into oral cavity through the circumvallate papilla |