The thin layer of gray matter on the surface of the cerebral hemisphere that develops from the telencephalon and folds into gyri. It reaches its highest development in man and is responsible for intellectual faculties and higher mental functions.

A curved elevation of gray matter extending the entire length of the floor of the temporal horn of the lateral ventricle (Dorland, 28th ed). The hippocampus, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation. Entorhinal Cortex; Perforant Pathway;

Projection neurons in the cerebral cortex and the hippocampus. Pyramidal cells have a pyramid-shaped soma with the apex and an apical dendrite pointed toward the pial surface and other dendrites and an axon emerging from the base. The axons may have local collaterals but also project outside their cortical region.

The anterior part of the cerebral hemisphere.

Area of the frontal lobe concerned with primary motor control. It lies anterior to the central sulcus.

The rostral part of the frontal lobe, bounded by the inferior precentral fissure in humans, which receives projection fibers from the mediodorsal nucleus of the thalamus. The prefrontal cortex receives afferent fibers from numerous structures of the diencephalon, mesencephalon, and limbic system as well as cortical afferents of visual, auditory, and somatic origin.

Lower lateral part of the cerebral hemisphere.

The cytoarchitecturally well-defined area of multilaminate cerebral cortex on the medial aspect of the parahippocampal gyrus, immediately caudal to the olfactory cortex of the uncus. The entorhinal cortex is the origin of the major neural fiber system afferent to the hippocampus, the so-called PERFORANT PATHWAY. (Stedman, 25th ed) Perforant Pathway;

Area of the temporal lobe concerned with hearing.

Posterior part of the cerebral hemisphere.

Area of the occipital lobe concerned with vision.

Upper central part of the cerebral hemisphere.

Area of the parietal lobe concerned with receiving general sensations. It lies posterior to the central sulcus.

The largest portion of the CEREBRAL CORTEX. It is composed of NEURONS arranged in six layers.