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16 Cards in this Set
- Front
- Back
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INTRAORAL TONSILLAR TISSUE |
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What are intraoral tonsillar tissue consist of? |
nonencapsulated masses of lymphoid tissue located in the lamina propria of the oral mucosa |
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Tonsils like lymph nodes contain what? |
Lymphocytes which remove toxic products
Move to the epithelial surface as they mature |
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Unlike lymph nodes tonsillar tissue is not located along lymphatic vessels but are where? |
Situated near airway and food passages to protect the body against disease processes |
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PALATINE TONSILS |
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Palatine tonsils are what? |
Two rounded masses of variable size |
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Where are palatine tonsils located? |
between the anterior faucial pillar and posterior faucial pillar |
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Each mass contains what? |
fused together lymphatic nodules that have germinal centers |
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Each tonsil has how many epithelial grooves? |
10 to 20 that penetrate deeply into the tonsil to form tonsillar crypts |
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What do tonsillar crypts contain? |
Shed epithelial cells mature lymphocytes oral bacteria |
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OTHER TONSILS |
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what are Lingual Tonsils |
indistinct layer of diffuse lymphoid tissue |
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Where are lingual tonsils located? |
base of the dorsal surface of the tongue, posterior to the circumvallate lingual papillae |
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Pharyngeal tonsils are located where? |
behind the uvula on the superior and posterior walls of the nasopharynx |
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What does the pharyngeal tonsils form? |
incomplete ring of tissue (Waldeyer's ring) |
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When the pharyngeal tonsils become enlarged as mostly common in children they are considered what? |
Adenoids |
