3I) Premotor Area: Deals with learned motor activities of a complex and sequential nature. It generates impulses causing specific muscles to contract (like writing name). It is a memory bank for such movements. 3J) Frontal Eye Field Area: It controls voluntary scanning movements of the eyes (those you used to just read a sentence).
Diencephalon
The diencephalon lies ventral to the cerebrum and consists of the thalamus, hypothalamus, epithalamus and the hypophysis.
Thalamus
The thalamus makes up 80% of the diencephalon. It consists of paired oval nuclei (L & R lateral & medial geniculate nuclei) with interspersed tracts of white matter. The thalamus contains fibres of CN II and forms the optic chiasm. Function : In summary, the thalamus is a major relay station for most sensory impulses that reach the primary sensory areas of the cerebral cortex from the spinal cord and brain stem. The thalamus contributes to motor functions by transmitting information from the cerebellum and basal nuclei to the primary motor area of the cerebral cortex. The thalamus also relays nerve impulses between different areas of the cerebrum and plays a role in the maintenance of consciousness.
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