Q1. List the primary divisions of the nervous system and their subdivisions. List the cranial nerves of special senses and the nerves that innervate the eye muscles.
- (i)) List the primary divisions of the nervous system and their subdivisions. (200 words)
- (ii)) List the cranial nerves of special senses and the nerves that innervate the eye muscles. (200 words)
- Nervous system divides into Central Nervous System (CNS) and Peripheral Nervous System (PNS).
- CNS comprises the brain and spinal cord, serving as the body's primary control center.
- PNS includes Somatic (voluntary) and Autonomic (involuntary) nervous systems.
- Autonomic NS has Sympathetic ('fight or flight') and Parasympathetic ('rest and digest') divisions.
Answer: The vertebrate nervous system, a complex network of nerve cells, is fundamentally divided into two primary divisions: the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). Each of these divisions has further subdivisions that specialize in different aspects of sensory reception, information processing, and motor response. Cranial nerves play crucial roles, particularly in special senses like vision, smell, taste, hearing, and balance, as well as in controlling precise movemen...