hyoid arch

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, interhyal, ceratohyal and one or two hypohyals which articulate with the basihyal. The prefixes epi-, cerato- and hypo- should not be interpreted as indicating correspondence with branchial elements bearing the same prefix. Posterohyal (epihyal), anterohyal (ceratohyal), dorosohyal (dorsal hypohyal) and ventrohyal (ventral hypohyal) have been coined to avoid this confusion. Some authors eschew the term epihyal and employ for the epihyal and ceratohyal, posterior and anterior or proximal and distal ceratohyal

Dictionary of ichthyology. 2009.

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  • Hyoid arch — Hyoid Hy oid, a. [Gr. ? fr. the letter [Upsilon] + e i^dos form: cf. F. hyo[ i]de.] 1. Having the form of an arch, or of the Greek letter upsilon [[Upsilon]]. [1913 Webster] 2. (Anat.) Of or pertaining to the bony or cartilaginous arch which… …   The Collaborative International Dictionary of English

  • Hyoid arch — Infobox Embryology Name = PAGENAME Latin = GraySubject = 13 GrayPage = 66 Caption = Head end of human embryo, about the end of the fourth week. Caption2 = Floor of pharynx of embryo. (Second arch visible near center.) System = MeshName =… …   Wikipedia

  • hyoid arch — second pharyngeal a …   Medical dictionary

  • Hyoid — Hy oid, a. [Gr. ? fr. the letter [Upsilon] + e i^dos form: cf. F. hyo[ i]de.] 1. Having the form of an arch, or of the Greek letter upsilon [[Upsilon]]. [1913 Webster] 2. (Anat.) Of or pertaining to the bony or cartilaginous arch which supports… …   The Collaborative International Dictionary of English

  • Hyoid bone — Hyoid Hy oid, a. [Gr. ? fr. the letter [Upsilon] + e i^dos form: cf. F. hyo[ i]de.] 1. Having the form of an arch, or of the Greek letter upsilon [[Upsilon]]. [1913 Webster] 2. (Anat.) Of or pertaining to the bony or cartilaginous arch which… …   The Collaborative International Dictionary of English

  • Hyoid bone — Bone: Hyoid bone Hyoid bone. Anterior surface. Enlarged …   Wikipedia

  • arch — Any structure resembling a bent bow or an a.; an arc. In anatomy, any vaulted or archlike structure. See arcus. SYN: arcus [TA]. [thru O. Fr. fr. L. arcus, bow] abdominothoracic a. a bell shaped line defined by the lower end of the sternum and… …   Medical dictionary

  • hyoid — U shaped or V shaped; denoting the h. bone and the h. apparatus. [G. hyoeides, shaped like the letter upsilon, Υ] * * * hy·oid hī .ȯid adj 1) of or relating to the hyoid bone 2) of, relating to, or being the second postoral branchial arch from… …   Medical dictionary

  • hyoid bars — a pair of cartilaginous plates forming the second pharyngeal (branchial) arch, from which a part of the hyoid bone is developed …   Medical dictionary

  • hyoid — /ˈhaɪɔɪd/ (say huyoyd) adjective 1. denoting or relating to a U shaped bone at the root of the tongue in humans, or a corresponding bone or collection of bones in animals. –noun 2. the hyoid bone, cartilage, arch, ligament, etc. {New Latin… …  

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