Exoccipital


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Related to Exoccipital: parietal bone, occipital protuberance

Ex`oc`cip´i`tal


a.1.(Anat.) Pertaining to a bone or region on each side of the great foremen of the skull.
References in periodicals archive ?
The proatlas gives rise to the exoccipital bone and participates in the formation of the occipital condyle and the tip of the odontoid process).
The exoccipital region is delimited by the tympanic ala (Cavum tympanicum--AT) (Fig.
The ossification is observed in the medial and posterior regions of the basal plate, which correspond to basisphenoid, basioccipital and exoccipital.
Esta vertebra presenta en su superficie anterodorsal dos grandes carillas articulares para el exoccipital, las cuales se encuentran separadas por una pequena saliencia osea de contorno subtriangular que tambien articula con este hueso a modo de condilo.
A regiao do osso exoccipital delimita-se com a ala timpanica (cavum tympanicum) por meio do curto e arredondado processo paraoccipital (proc.
Elements include a portion of the paired premaxillae containing alveoli for the second and third incisors; maxillae with most of the premolars (PM) intact (right PM4, PM3, PM2; left PM4, PM3, the last loose in matrix); the jugals, zygomatic processes, squamosals, and exoccipital are largely intact.
It supports a prominent ventromedial process that forms the third ventral occipital condyle; the dorsal edge of the basioccipital separates the exoccipital medially and forms the ventral edge of the foramen magnus.
In newborn and young specimens, other openings in the occipital region (located above the fenestrae) were observed, corresponding to the fontanelles, formed by the union of the exoccipital, parietal and supraoccipital bones (Figure 5).
Filleul & Maisey reported a 'lagenar capsule' (see below) on the exoccipital and also the basioccipital of [dagger] Santanichthys diasii; this seems to indicate that the members of this taxon exhibited CS-1.
Los pares de la region ventral son: exoccipital, prootico, orbitoesfcnoides y premaxillar.
Epiotic large, bearing crest for attachment of epaxial musculature (lesser crests also occurring on supraoccipital, exoccipital and pterotic).
Anteriormente recubre parcialmente la parte posterior del esfenetmoide y posteriormente recubre el prootico y limita con el exoccipital.