ceratohyal
the endochondral bone articulating dorsally with the interhyal, anteriorly supporting some branchiostegal rays and ventrally joining one or two hypohyals. The ceratohyal and the epihyal are two ossification centres of the same bone and should therefore be named ventral ceratohyal and dorsal ceratohyal respectively. Since the ventral ceratohyal is probably homologous with a hypobranchial, the correct names should be anterohyal and posterohyal, while the two hypohyals should be called dorsohyal and ventrohyal. In cartilaginous fishes it is a paired element on the ventral part of the hyoid arch

Dictionary of ichthyology. 2009.

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  • Ceratohyal — Cer a*to*hy al, a. [Gr. ke ras horn + the letter [Upsilon].] (Anat.) Pertaining to the bone, or cartilage, below the epihyal in the hyoid arch. n. A ceratohyal bone, or cartilage, which, in man, forms one of the small horns of the hyoid. [1913… …   The Collaborative International Dictionary of English

  • ceratohyal — Relating to one of the cornua of the hyoid bone. SYN: keratohyal. * * * cer·a·to·hy·al .ser ə (.)tō hī əl or cer·a·to·hy·oid hī .ȯid n the smaller inner projection of the two lateral projections on each side of the human hyoid bone called also… …   Medical dictionary

  • ceratohyal — cer·a·to·hy·al …   English syllables

  • ceratohyal — …   Useful english dictionary

  • anterohyal — ceratohyal (the bone articulating dorsally with the interhyal, anteriorly supporting some branchiostegal rays and ventrally joining one or two hypohyals) …   Dictionary of ichthyology

  • arcus hyoideus — (plural arcus hyoidei)) hyoid arch (the arch lying between the gill arches and jaws, with which it is believed homologous and which helps support the floor of the mouth cavity. Composed in teleostomes of the following paired endoskeleton elements …   Dictionary of ichthyology

  • hyoid arch — the arch lying between the gill arches and jaws, with which it is believed homologous and which helps support the floor of the mouth cavity. Composed in teleostomes of the following paired endoskeleton elements: hyomandibula, symplectic,… …   Dictionary of ichthyology

  • dorsal cerathyal — epihyal (the deep, endochondral bone at the upper end of the hyoid arch below the interhyal. It joins the hyomandibular and the symplectic through the interhyal, and articulates with the ceratohyal by a suture in some fishes, e.g. Gadidae. May… …   Dictionary of ichthyology

  • epihyal — the deep, endochondral bone at the upper end of the hyoid arch below the interhyal. It joins the hyomandibular and the symplectic through the interhyal, and articulates with the ceratohyal by a suture in some fishes, e.g. Gadidae. May bear a… …   Dictionary of ichthyology

  • os epihyale — (plural ossa epihyalia)) epihyal (the deep, endochondral bone at the upper end of the hyoid arch below the interhyal. It joins the hyomandibular and the symplectic through the interhyal, and articulates with the ceratohyal by a suture in some… …   Dictionary of ichthyology

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