Uncus

Uncus
Medial surface of left cerebral hemisphere. Uncus is shown in orange.
Human brain inferior-medial view (Uncus is #5)
Identifiers
NeuroNames	hier-21
TA	A14.1.09.235
FMA	74884
Anatomical terms of neuroanatomy []

The uncus is an anterior extremity of the Parahippocampal gyrus. It is separated from the apex of the temporal lobe by a slight fissure called the incisura temporalis.

Although superficially continuous with the hippocampal gyrus, the uncus forms morphologically a part of the rhinencephalon.

The term comes from the Latin word uncus which means hook and it was coined by Felix Vicq d’Azyr (1748–1794).

The part of the olfactory cortex that is on the temporal lobe covers the area of the uncus, which leads into the two significant clinical aspects of the uncus: uncinate fits and uncal herniations.

The landmark that helps you find the amygdala on a coronal section of the brain.

Position of uncus (red)

Human brain, medial view. (Uncus shown in blue)

Human brain, inferior view. (Uncus shown in blue)

Uncus (green text)

Basal view of a human brain

Scheme of rhinencephalon. (Uncus labeled at bottom right.)

Uncus

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)