1. Structural and Functional Unit of Nervous System:
The structural and functional unit of the nervous system is the Neuron.
2. Explanation:
A neuron is responsible for transmitting electrical signals in the nervous system. It consists of three main parts: the cell body, dendrites, and axon, which help in the reception and transmission of signals.
Final Answer:
The structural and functional unit of the nervous system is $ {\text{Neuron}} $.
S.No. | Cranial nerves | Arises from ... | Ends in ... |
---|---|---|---|
I. | Olfactory nerves | Olfactory epithelium of nasal chambers | Temporal lobes of cerebrum |
II. | Optic nerves | Retina of eyes | Cerebellum |
III. | Auditory nerves | Internal ears | Cerebrum |
IV. | Pathetic nerves | Floor of mid brain | Superior oblique muscle of eye ball |
Table 1: List of Cranial Nerves: Their Origins and End Points