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Meckel's cartilage |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.04 sec. |
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Meckel's cartilage [′mek·əlz ‚kärt·lij] (embryology) The cartilaginous axis of the mandibular arch in the embryo and fetus. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Meckel's cartilage attaches at the posterior portion of the palatoquadrate, next to the anterior attachment of the hyomandibula. It is assumed that it originates in the ectopic cartilaginous embryonic rests of Meckel's cartilage of the first branchial arch. Under this hypothesis, (1) Meckel's cartilage was solely responsible for the head and neck of the malleus, and the body and short process of the incus; (2) Reichert's cartilage was responsible for the handle of the malleus, the long process of the incus, the crura, and the lateral stapedial footplate; and (3) the otic capsule was responsible for the medial stapedial footplate. |
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