Ceratohyal


Also found in: Medical.
Related to Ceratohyal: Hyomandibular

Cer`a`to`hy´al


a.1.(Anat.) Pertaining to the bone, or cartilage, below the epihyal in the hyoid arch.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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Abbrevation Bones Cyprinidae Clupeidae Anguillidae Total ar Articular 11 3 14 boc Basioccipital 12 1 13 bpq Basipterygium 16 16 c Caudal vertebra 207 28 235 ceh Ceratohyal 10 1 11 cl Cleithrum 27 2 29 dn Dentary 19 2 21 eph Epihyal 16 16 fr Frontal 6 6 hb Head bone 38 4 42 (unidentified) hy Hyomandibular 13 13 iop Interopercle 10 10 mx Maxilla 7 2 9 op Opercle 21 1 1 23 pl Palatine 1 1 psp Parasphenoid 3 1 4 pha Pharyngeal bone 40 40 ptp Posttemporal 3 3 pc1 Precaudal 1 19 19 pc2 Precaudal 2 2 2 pc3 Precaudal 3 2 2 pc Precaudal 178 43 221 vertebra pmx Premaxilla 3 3 pu Preural vertebra 3 3 pop Preopercle 25 25 qd Quadrate 3 3 sop Subopercle 7 7 scl Supracleithrum 19 19 ur Urohyal 2 2 ver Vertebra 28 28 (unidentified) vo Vomer 2 2 Total 751 1 90 842
Unexpectedly, knocking down slincR expression in TCDD-exposed (Ahr2-activated) zebrafish embryos resulted in an abnormal junction between hyosymplectic and ceratohyal cartilages in comparison with control morphants exposed to TCDD (Figure 4B, region of interest indicated by arrows in trace column).
The stylohyoid chain extends between the temporal bone and the hyoid bone and is divided into four sections- a) Tympanohyal (forms the base of the styloid process), b) Stylohyal (forms major portion of the styloid process), c) Ceratohyal (forms the stylohyoid ligament), d) Hypohyal (forms the lesser horn of the hyoid bone).
At this stage, the orbitohyoideus is a broad muscle composed of short fibers oriented postero-ventrally from their origin on the muscular process of the palatoquadrate to their insertion on the lateral edge of the ceratohyal.
9): branchiostegals 5, first branchiostegal small, thin, and attached to ventral surface of narrow portion of ceratohyal, following three branchiostegals blade-like in appearance and attached at ventrolateral surface of broad portion of ceratohyal; posteriormost branchiostegal broadest, articulating with ventral surface of epihyal; basihyal broad, spatulate, slightly emarginate, with only posterior third ossified (Fig.
(4) The stylohyoid apparatus has four distinct segments: tympanohyal, stylohyal, ceratohyal, and hypohyal.
Bony fishes were represented by a ceratohyal element of Pachyrhizodus caninus and bone fragments of Bananogmius cf.
The hyosymplectic and ceratohyal cartilages are believed to correspond to the dorsal and ventral homologs, respectively, in the hyoid arch.
33); a significant portion of the mandibulo-interopercular ligament attaches also on the posterior ceratohyal (e.g.