The thalamus is the brain region from which all the somatosensory input passes by the synapses to the cerebrum.
The brain is a central nervous system of all humans, which controls all voluntary and involuntary actions. It has three major parts- Forebrain( Prosencephalon), Midbrain( Mesencephalon), and Hindbrain( rhombencephalon). The forebrain is the largest part of the brain having two parts cerebrum and the diencephalon.
The thalamus is the part of the diencephalon, which performs the somatosensory function by transmitting all the sensory information by the impulses from the various receptors present in the body to the cerebral cortex.
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