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<peir-vm>UAB-Histology-00288</peir-vm>

The outer portion of the cerebellum, the cortex, is made up of a molecular layer and a granular layer. At the junction between these two layers are the large cell bodies of Purkinje cells. These cells are characteristic of cerebellum. They contain numerous dendrites that extend into the molecular layer and a single axon.

The choroid plexuses are located in the ventricular system of the brain and produce cerebrospinal fluid. Each choroid plexus consists of a vascular stroma covered by columnar epithelial cells, which form large frond-like masses. The cerebrospinal fluid produced in the ventricles flows out through exit foramina at the base of the brain and circulates in the subarachnoid space. It is reabsorbed by the venous sinuses in the dura.

=== Slide 15, Choroid plexus (Masson) ===