Vol. 10, Issue 10, Part C (2025)

Cerebral peduncles are two cylindrical structures extended between the optic chiasma anteriorly and continued as pons posteriorly. Pons is quadrilateral raised structure comprising largest portion of the brain stem. Medulla oblongata is compressed dorsoventrally. It is broader anteriorly while width decreased towards spinal cord. Histologically cerebral peduncles consisted of small amount of central white matter located towards the cerebral aqueduct. White matter is surrounded by large amount of grey matter. Grey matter consisted of large amount of neuropil. Among the different neuroglial cells the predominant glial cell type seen in cerebral peduncles is oligodendrocyte. Pons consisted of central white mater surrounded by grey mater. The cell bodies of the neurons are organized to form several nuclei. Pons consisted of large amount of neuropil in which the neurons and neuroglial cells are dispersed. Oligodendrocytes are the most predominant cell type found followed by the astrocytes. Medulla Oblongata is made up of central white mater surrounded by white mater. Astrocyte population is predominant. Microglia were a few found near the capillaries.