Medial sulcus of the cerebral peduncle

The medial cerebral peduncle groove (sulcus medialis cruris cerebri) is a groove that runs between the cerebral hemispheres and connects the cerebral peduncles with the frontal lobes. It is an important anatomical structure as it plays a role in regulating the movement of the eyeballs.

The medial cerebral peduncle groove begins from the medial surface of the cerebral peduncles and passes through the frontal lobe to the surface of the medial angle of the hemisphere. It is located on the medial side of the hemisphere and runs parallel to the fissure of Sylvius.

This groove is important for the functioning of the oculomotor nerves. The oculomotor nerves are responsible for moving the eyeballs up, down, right and left, as well as for focusing the gaze on an object.

The medial cerebral peduncle sulci can be damaged by head trauma, which can lead to disruption of the extraocular muscles and ultimately to vision loss. Therefore, it is important to know how this sulcus works and its role in the functioning of the oculomotor system.

The medial cerebral peduncle groove is the dorsal cerebral peduncle groove, connecting the cerebral peduncle with the dorsal part of the cerebral pons. Corresponds ventrally to the trepangoid field of the extac. It is located in the middle third of the dorsoclinoid fossa of the brain between the sphenoid part and the dorsal part of the parocuneiform triangle. The length of the groove is on average 3.5 cm, width from 2.5 to 6.0 cm. Dorsally, the groove is limited by part of the matrix of the cerebral pons, on the sides - by the trunks of the pupillary nerves, at the distal end - by the root of the pons, from below - by the dorsal surface of the pons. The contents of the grooves can be represented by large veins (branches of veins: lacunar, medullary, transverse, maxillary fossa) and vessels. In the upper part, where the furrow approaches the kernels