cartilage de Meckel

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• Meckel's cartilage — Head and neck of a human embryo eighteen weeks old, with Meckel’s cartilage and hyoid bar exposed …   Wikipedia

• Meckel, Johann Friedrich — born Oct. 17, 1781, Halle, Prussia died Oct. 31, 1833, Halle German anatomist. He was the first to describe the embryonic cartilage (Meckel cartilage) that becomes part of the lower jaw in fishes, amphibians, and birds and also described a… …   Universalium

• Meckel's cartilage — Meck·el s cartilage mek əlz n the cartilaginous bar of the embryonic mandibular arch of which the distal end ossifies to form the malleus and most of the rest disappears in development, with the part adjacent to the malleus being replaced by… …   Medical dictionary

• Cartilage — Firm, rubbery tissue that cushions bones at joints. A more flexible kind of cartilage connects muscles with bones and makes up other parts of the body, such as the larynx and the outside parts of the ears. * * * A connective tissue characterized… …   Medical dictionary

• Meckel's cartilage — Meckelian Meck*e li*an, a. (Anat.) Pertaining to, or discovered by, J. F. Meckel, a German anatomist. [1913 Webster] {Meckelian cartilage}, the cartilaginous rod which forms the axis of the mandible; called also {Meckel s cartilage}. [1913… …   The Collaborative International Dictionary of English

• Meckel cartilage (rod) diverticulum plane syndrome — Meck·el cartilage (rod), diverticulum, plane, syndrome (mekґəl) [Johann Friedrich Meckel (the younger) (grandson of J.F. Meckel, the elder), German anatomist, 1781–1833] see under cartilage, diverticulum, plane, and syndrome …   Medical dictionary

• Meckel's cartilage — a cartilaginous bar in the fetus around which the mandible develops. Part of Meckel s cartilage develops into the malleus (an ear ossicle) in the adult. [F. Meckel, the Younger (1781–1833), German anatomist] …   The new mediacal dictionary

• Meckel-Gruber syndrome — Meck·el Gru·ber syndrome mek əl grü bər n a syndrome inherited as an autosomal recessive trait and typically characterized by occipital encephalocele, microcephaly, cleft palate, polydactyly, and polycystic kidneys called also Meckel s syndrome… …   Medical dictionary

• Meckel's foramen — when not completely surrounded by dermal bone, Meckel s cartilage is visible on the medial face of the lower jaw, e.g. some Sarcopterygii. Also called Meckel s or Meckelian canal, groove and fossa although groove is usually used in tetrapods …   Dictionary of ichthyology

• Meckel's cartilage — the functional lower jaw of Elasmobranchii and Holocephali, the embryonic lower jaw of other gnathostomous vertebrates which ossifies at least in part as the mentomeckelian, mediomeckelian, coronomeckelian, articular and retroarticular. It… …   Dictionary of ichthyology

• Meckel cartilage — the cartilaginous bar (in the embryo) into which the mesenchymal core of the mandibular prominence of the first mandibular arch is converted; from it or its sheath, the sphenomandibular ligament, the anterior malleolar ligament, the malleus, and… …   Medical dictionary