Question

B. Fill in the blanks. brain 1. is the basic structural unit of the nervous system. 2. A single long fibre extending from the cell body of a neuron is called The central nervous system comprises and nervous system comprises the nerves arising from the brain and spinal cord. 5. The brain is enveloped by three membranes called 3. 4. The​

Answer 1

1. Neurons are the structural unit of nervous system.

2.Axon.

3.durameter,piameter and arachnoid space.