Meckelian cartilage

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• Meckelian cartilage — The Meckelian Cartilage, also known as Meckel s Cartilage , is a piece of cartilage ( gristle ) from which the mandibles (lower jaws) of vertebrates evolved. Originally it was the lower of two cartilages which supported the first gill arch… …   Wikipedia

• 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 Webster] …   The Collaborative International Dictionary of English

• Meckelian groove — The Meckelian groove (or Meckel s groove, Meckelian fossa, or Meckelian foramen, or Meckelian canal) is an opening in the medial (inner) surface of the mandible (lower jaw) which exposes the Meckelian cartilage.[1] Modern eutherian mammals (which …   Wikipedia



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

• 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

• Gnathostomata — Taxobox name = Gnathostomata fossil range = fossilrange|462|0Late Ordovician Recent image width= 200px image caption = Gnathostomata are jawed vertebrates regnum = Animalia phylum = Chordata subphylum = Vertebrata infraphylum = Gnathostomata… …   Wikipedia

• 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