Supraoccipital


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Related to Supraoccipital: Supraoccipital bone

Su`pra`oc`cip´i`tal


a.1.(Anat.) Situated over, or in the upper part of, the occiput; of or pertaining to the supraoccipital bone.
Supraoccipital bone
(Anat.) a bone on the dorsal side of the great foramen of the skull, usually forming a part of the occipital in the adult, but distinct in the young.
References in periodicals archive ?
Only a small fraction of the external surfaces of the supraoccipital, prootic and exoccipital-opisthotic can be seen in dorsolateral view.
The cerebellar prominence (Cerebellar prominence--PC, Figures 1 - 15) of the supraoccipital bone is protruding and tapered in C.
Por otra parte, las diferencias observadas en la disposicion y arreglo estructural de la linea lateral anterior, en las tres especies de narcinidos, corresponden a un mayor numero de ramificaciones de los canales infraorbital y supraoccipital de N.
En vista lateral, la curvatura frontal es pronunciada; la cresta sagital y supraoccipital son poco desarrolladas pero perceptibles al tacto; a nivel del primer y segundo premolar se presenta una curvatura que inclina internamente al segundo premolar, las alas del pterigoides son delgadas, alargadas y dirigidas posteriormente; el condilo occipital esta bien desarrollado.
Skeletal analysis showed lumbar rib and incomplete ossification of the cranial, sternum and supraoccipital bones (Table 3).
Los peces fueron anestesiados con una sobredosis de quenaldine (0.2 g/l) y sacrificados por seccion medular, al nivel de la espina supraoccipital, teniendo en cuenta las guias para el manejo etico de peces para la investigacion (Branson, 2008; AVMA, 2011).
The Interparietal bone was small quadrilateral wedged in between the parietal anterio-laterally and the supraoccipital posteriorly as described in goat (Singh & Patel).
Dorsal margin of head sloping from supraoccipital crest to snout; HL 30.3-39.7% SL (34.6% SL); head depth 50.3-75.1% HL (59.4 HL); eye large, orbit diameter 20.9-33.0% HL (24.6% HL), orbit with bony ridge extending over anterodorsal margin; interorbital ridge moderately wide, interorbital area slightly convex, interorbital width 21.6-32.9% HL (25.9% HL); suborbital depth 2.5-8.5% HL (5.6% HL); snout length 17.2-27.4% HL (21.3% HL), nostrils anterior to central point of orbit, anterior nostril with spatulate flap extending posteriorly dorsal to posterior nostril and surpassing vertical bisecting posterior nostril when depressed, posterior nostril larger than anterior and without flap; cranial spines mostly absent with the exception of moderately weak nasal spines.
In the chondrocranium this is observed in the occipital and supraoccipital region; the prootic, otoccipital (opisthotic-exoccipital), basioccipital and basisphenoid are present.
The lambda between the parietal and the supraoccipital is missing.
The upper part of the occipital bone which lies between the two parietal bones is a membranous bone is known as interparietal bone, whereas the lower part (supraoccipital) is a cartilaginous bone.