Answer:
the peripheral nervous system(PNS)
Explanation:
The PNS which is made up of nerves and ganglia, connected the brain and spinal cord(CNS) with other parts of the body. It is like conduit for exchange of sensory and motor information between the CNS the other body parts
It is divided into somatic nervous system ; which controls voluntary activities of the skeletal muscles and cranial nerves. with the brain.For example it transmits sensation of touch and taste to the CNS.
and
autonomic nervous system; which control involuntary activities of the smooth muscles and glands. it consist of both afferent and efferent nerves fro transmission of impulses to and fro the CNS.
Based on the response of body organs to external environments, the autonomic system can be sympathetic or parasympathetic.
It is not protected like the organs of CNS.This explains the reason for its proneness to infections and toxins in the blood.
