In the human brain, the entorhinal cortex appears as a longitudinal elevation anterior to the parahippocampal gyrus, with a corresponding internal furrow, the external rhinal sulcus (or rhinal fissure). The rhinal sulcus separates the parahippocampal uncus from the rest of the temporal lobe in the neocortex. [1]

Rhinal sulcus is an anterior extension of the collateral sulcus located on the inferior surface of the temporal lobe. It divides the front part of the parahippocampal gyrus (called the uncus) from the medial occipitotemporal gyrus on the outside.

May 13, 2018 · The rhinal sulcus is located on the anteromedial surface of the temporal lobe. It curves in an anteroposterior direction and separates the uncus from the temporal pole. Some sources consider it to be an extension of the collateral sulcus 1-4.

The rhinal sulcus, the shorter sulcus, courses at the lateral edge of the uncus between the uncus and the fusiform gyrus and may or may not be continuous with the collateral sulcus.

The term rhinal sulcus refers to a groove in the cerebral cortex of the human (Carpenter-1983), macaque (Martin-2000), rat ( Swanson-2004 ) and mouse ( Hof-2000 ).

the shallow rostral continuation of the collateral sulcus that delimits the rostral part of the parahippocampal gyrus from the fusiform or lateral occipitotemporal gyrus. One of the oldest sulci of the pallium, it marks the border between the neocortex and the allocortical (olfactory).

The Rhinal Sulcus is a structure that is visualized in more than 50% of cases at 26 weeks and in all normal fetuses at 28 weeks and later. It is important for assessing fetal sulcation in the second-trimester fetus.

In neuroanatomy, a sulcus (Latin: "furrow"; pl.: sulci) is a shallow depression or groove in the cerebral cortex. One or more sulci surround a gyrus (pl. gyri), a ridge on the surface of the cortex, creating the characteristic folded appearance of the brain in humans and most other mammals. The larger sulci are also called fissures.

The rhinal sulcus represents the anterolateral border of the entorhinal region. By defining four branches of the rhinal sulcus all the possible ramifications occurring in the investigated hemispheres could be described.

the shallow rostral continuation of the collateral sulcus that delimits the rostral part of the parahippocampal gyrus from the fusiform or lateral occipitotemporal gyrus. One of the oldest sulci of the pallium, it marks the border between the neocortex and the allocortical (olfactory).