Basal Ganglia.

i. Basal ganglia or basal nuclei are grey masses present within the white matter or lying on the lateral sides of thalamus.

ii. The basal ganglia or nuclei of cerebrum receive neurotransmitters from various parts.

iii. They help the cortex in the execution of activities at the subconscious level. e.g. Writing slow or rapid typing.

iv. The largest basal nucleus known as corpus striatum, is located at the floor of cerebrum.