Purkinje cells are found in which brain region?

Purkinje cells are found in which brain region?

• A. Cerebellum
• B. Cerebral cortex
• C. Brainstem
• D. Thalamus

Answer: (A)

Purkinje cells are located in the cerebellar cortex. They are the primary output neurons of that cortex, sending inhibitory signals to the deep cerebellar nuclei via their long axons. Their cell bodies sit in a distinct Purkinje cell layer between the molecular layer (where their dendrites fan out) and the granular layer. Purkinje cells integrate inputs from two main sources: parallel fibers from granule cells and climbing fibers from the inferior olive, allowing them to finely tune motor coordination. The other brain regions listed do not house Purkinje cells; the cerebral cortex, brainstem, and thalamus have different neuronal types and circuits.

Purkinje cells are located in the cerebellar cortex. They are the primary output neurons of that cortex, sending inhibitory signals to the deep cerebellar nuclei via their long axons. Their cell bodies sit in a distinct Purkinje cell layer between the molecular layer (where their dendrites fan out) and the granular layer. Purkinje cells integrate inputs from two main sources: parallel fibers from granule cells and climbing fibers from the inferior olive, allowing them to finely tune motor coordination. The other brain regions listed do not house Purkinje cells; the cerebral cortex, brainstem, and thalamus have different neuronal types and circuits.