Question

Fill in the blanks.

1. The basic structural and functional unit of the nervous system is a _____________

2. ________________is covered by a sheath called myelin sheath. of the brain.

3. ______________ is the largest part of the brain.

4. The ______________ fluid nourishes the brain and absorbs shocks.

5. The _____________ coordinates the movement of the voluntary muscles. ​

Answer 1

1.The basic structural and functional unit of the nervous system is a neuron.