Purkinje nerve cells. Light micrograph (LM) of a section through the cerebellum in the brain, showing Purkinje nerve cells. Each Purkinje cell is composed of a flask-shaped cell body from which branch numerous dendrites Purkinje cells are arranged at the junction of the molecular and granular layers of the cerebellum, which make up the grey matter of the brain. Nerve impulses flow to the Purkinje cells through their dendrites. The message is then passed on to the white matter deep in the cerebellar cortex. Nuclei (small dots) of other nerve cells, such as glial cells, can be seen throughout the grey matter. Magnification: x110 when 10cm wide.