Sensory information for all areas of the body is sent to the brain via the spinal cord.
http://www.brainandspinalcord.org/spinal-cord-injury/index.html
or
this website is also really helpful : http://www.benet.org/teachers/meraci/Biology/FrBioReviews/Nervous_System_Review/nervous_system_review.html
by the way GANGLINA is the answer
Sensory input would be blocked.
thalamus
spinal cord
cerebellum
The brainstem contains ascending and descending nerve pathways that carry sensory input and motor output information to and from higher brain regions
The nerves of the somatic nervous system control many different things. They carry the sensory data into the spinal cord, carry information into and out of the brain stem, and integrate sensory input and motor output.
The simplest type of nervous system response is a reflex loop, where the sensory input goes to the spinal chord (or brainstem, if it takes place in your neck) and from there the motor output is immediately returned. Only later the sensory input is transferred to and processed in the brain.
Interneurons are the neurons that make up the central nervous system (the brain and spinal cord). They internally communicate between the input from sensory neurons and our physical reaction triggered by the motor neurons.
the gate keeper of human brain is thallamus which is the floor of dihensephallon. It sort out the outgoing impulse from brain and incoming impulse from spinal cord.
The cervical enlargement occurs at vertebrae C3 through T2 and represents a bulge in the spinal cord that has increased neural input and output to the upper extremities.
cerebellum
Cerebrum.