Question

Distinguish between cranial nerves and spinal nervous.

Answer 1

To maintain the homeostasis (balance) nervous system plays a very important role in the human body. Nervous system provides information about changes in both the external and internal environment with a series of sensory receptors. Larger systems are composed of the smaller subsystem in the human nervous system that is complex or interconnected system.

Complete answer:

Cranial Nerves	Spinal cord
In the head, neck, thorax and abdomen there are 12 pairs of the cranial nerves present to supply the structure of the organs.	Between the body and brain the most important structure is present known as a spinal cord. It is the Vital link between the body and brain.
Modalities made up of a single modality which are situated functionally in the cranial nerve.	The diameter of the spinal cord 1-1.5 cm and length 40-50 cm. Two consecutive rows of nerve roots emerge on each side of the spinal cord and join distally to form 31 pairs of Spinal nerves.
Olfactory, optic nerve, oculomotor nerve and trochlear nerves also connected with the cranial nerve.	The composition of the spinal cord is filled with gray and white matter and divided into the four regions cervical, lumbar, sacral and thoracic found in the cylindrical structure of the nervous system.
Damage of the cranial nerve obtained the condition of Bell’s palsy in which loss of taste sensation, corner of mouth sags, Lower eyelids droops.	Only 2% of the central nervous system consisted of the spinal cord and helped to provide the function such as diagnosing the nature and location of the cord damage and many cord diseases.
The first two nerves present in the cranial nerve also known as an optic and olfactory that arise from the cerebrum and remaining part ten emerged from the brain stem.	Spinal cord provides the epidural space, network to the motor nerves and to the sensory part of the body and looks like cord and firm like structure.

Note: The voluntary and involuntary all activities are controlled by the nervous system and central nerve system and peripheral nervous system are the main part of the nervous system. Brain and spinal cord are the major interconnected organs found in the central nervous system; these organs work together and provide information for the purpose of controlling the various organs, tissues of the body.