We performed radical surgical excision of the lesion, resulting in a full-thickness defect with preservation of only 10% of the lower lip near the left commissure
Positions of the ostia were also observed with reference to the commissures
Similar to that of preceding species, except for narrower commissure
of buccal ganglia (Fig.
By stage 25, the MLF was well established and the ventral commissure
(VC) had formed across the ventral midline (Figure 1(i)).
The partly fused rostral and pineal plates, also partly fused preorbital plates and the presence of long occipital cross commissures
on the nuchal and paranuchal plates show some similarity between Eukaia and such actinolepidoids as Actinolepis and Bollandaspis.
The corpus callosum is the largest commissure
connecting the cerebral hemispheres.
between the two bridging leaflets (cleft) was bridged and measured as one leaflet (Fig.
By far the largest and most important fibre tract to be cut was the corpus callosum, but in early operations other tracts were also sectioned, including the anterior commissure
and the hippocampal commissure
L], nucleus of larval epidermis cell; Oc, ocellus; Pb, proboscis; Pc, posterior cirrus; St, mouth; VC, ventral commissure
of cerebral ganglia; Y, yolk.
Employing a bicommissural reference, a selection of slices in three spatial dimensions, axial, coronal and sagittal, was obtained with the objectives to localize structures of the internal cerebral anatomy of the spider monkey, especially of the fifth temporal gyrus, the anterior white commissure
, the gyrus of the cingulum and the great sulci, and to compare these structures afterwards to the cerebral structures of the human (H.
intercostal areas; transverse commissures
abundant, closely arranged,
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