rostral sulcus - BrainInfo

rostral sulcus (ros)

The term rostral sulcus refers to a superficial feature of the frontal lobe identified by dissection. In the human it is a horizontal groove on the lower medial surface that separates the straight gyrus below from the inferior rostral gyrus above ( Mai-1997 ); in brains that have parallel sulci dorsal to the straight gyrus, it is called the inferior rostral sulcus ( Vogt-1995 ). In the macaque, which does not have an inferior rostral gyrus or a superior rostral gyrus, it separates the straight gyrus from the anterior cingulate gyrus ( Martin-2000 ). Equivalent structures are not found in the smooth cerebral cortex of the rat or mouse ( NeuroNames ).

Also known as: rostral sulcus, Sulcus rectus (Krieg), sulcus rectus, inferior rostral sulcus, Sulcus rostralis inferior

NeuroNames ID: 76

All Names & Sources

1 of 11

Showing 11 synonym(s) - Use arrows or swipe to navigate

Showing 11 synonym(s)

English

inferior rostral sulcus

Vogt-1995

English

rostral sulcus

Bonin-1947

English

rostral sulcus

Mai-1997

Illustrations

Showing 6 illustration(s)

surface view of
fetal brain in
human

labeled line drawings of
sagittal section in
Macaca fascicularis

surface view of
all aspects in
macaque

surface view of
lateral aspect in
macaque

drawing of
all aspects in
macaque

diagrams of medial and
orbital prefrontal cortex in
human and macaque

Species With The Structure

Equivalent By	Human	Macaque	Rat	Mouse
Topology	Has The Structure	Relevant Data Not Located	Does Not Have The Structure	Does Not Have The Structure

1 of 4

Showing 4 record(s) - Use arrows to navigate

Showing 4 record(s)

Basis

Has Equivalent

Organism

Their Name

Source

Topology

Yes

Homo sapiens (human)

rostral sulcus

Mai-1997

Topology

Yes

sulcus rectus

Topology

---

Topology

---

Models Where It Appears

Structural CNS Model - Macaque

Brain structures of the macaque are illustrated in BrainInfo’s NeuroMaps macaque brain atlas. Structures are grouped by proximity in a hierarchy corresponding to the central nervous system hierarchy of NeuroNames ( Bowden-1995 Martin-2000 ). Structures in the NeuroMaps atlas are based on the segmentation of an MRI of the brain of a 3-year old male rhesus macaque (Macaca mulatta). The atlas is most useful for targeting structures for implantating electrodes and chemtrodes. Updated 29 Oct 2025.

brain

forebrain

cerebrum (endbrain)

cerebral cortex (cortical plate)