| granular layers of cerebral cortex | Layers 2 (outer) and 4 (inner) of the cortex cerebri. (05 Mar 2000) |
|---|---|
| peristriate cortex | See: visual cortex. (05 Mar 2000) |
| molecular layer of cerebellar cortex | The outer lamina of the cortex, containing the cell bodies and dendrites of Purkinje cells, the axons of the granule cells, and the cell bodies, dendrites, and axons of basket cells. Synonym: stratum moleculare cerebelli, molecular layer of cerebellar cortex. (05 Mar 2000) |
| molecular layer of cerebral cortex | Layer 1 of the cortex cerebri. Synonym: plexiform layer of cerebral cortex. (05 Mar 2000) |
| piriform cortex | The olfactory cortex, corresponding to the rostral half of the uncus; receiving its major afferents from the olfactory bulb, it is classified as allocortex. See: cerebral cortex. Synonym: olfactory cortex, piriform area. (05 Mar 2000) |
| motor cortex | Area of the frontal lobe concerned with primary motor control. It lies anterior to the central sulcus. (12 Dec 1998) |
| plexiform layer of cerebral cortex | Layer 1 of the cortex cerebri. Synonym: plexiform layer of cerebral cortex. (05 Mar 2000) |
| prefrontal cortex | The rostral part of the frontal lobe, bounded by the inferior precentral fissure in humans, which receives projection fibres from the mediodorsal nucleus of the thalamus. The prefrontal cortex receives afferent fibres from numerous structures of the diencephalon, mesencephalon, and limbic system as well as cortical afferents of visual, auditory, and somatic origin. (12 Dec 1998) |
| premotor cortex | A somewhat ill-defined term usually referring to the agranular cortex of Brodmann's area 6. Synonym: premotor area. (05 Mar 2000) |
| primary visual cortex | See: visual cortex. (05 Mar 2000) |
| provisional cortex | An extensive area of the adrenal gland present in primates during foetal life and for a short period after birth; located between the definitive cortex and the medulla, it contains large steroid-secreting cells arranged in a reticular pattern; involution of this zone in humans is largely completed by three months after birth. Synonym: androgenic zone, foetal reticularis, foetal zone, provisional cortex. (05 Mar 2000) |
| heterotypic cortex | O. Vogt's term denoting several regions of the cerebral cortex, in particular the olfactory cortex and the hippocampus, characterised by fewer cell layers than the isocortex. See: cerebral cortex. Synonym: heterotypic cortex. Origin: allo-+ L. Cortex, bark (cortex) (05 Mar 2000) |
| secondary sensory cortex | A cortical region occupying the parietal operculum (upper lip of the lateral sulcus) closely posterior to the foot of the postcentral gyrus; like the primary somatic-sensory cortex of the postcentral gyrus, this region receives sensory impulses originating in face, trunk, and limbs; projections to the s.s.c. Are from the ventral basal complex (ventral posteromedial and posterolateral thalamic nuclei) and from the primary somesthetic cortex. (05 Mar 2000) |
| secondary visual cortex | See: visual cortex. (05 Mar 2000) |
| homotypic cortex | O. And C. Vogt's term for the larger part of the mammalian cerebral cortex, distinguished from the allocortex by being composed of a larger number of nerve cells arranged in six layers. See: cerebral cortex. Synonym: homotypic cortex, neocortex, neopallium. (05 Mar 2000) |