B. Give one word for the following.
1. Structural and functional unit of nervous
system.
2. Spiral sheath around axon.
3. The nerve fibres that transmit impulses from
receptors to brain.
4. The automatic response by the body towards
a stimulus.
5. Centre of reasoning, instinct and intelligence.
6. Membranes which surround and protect brain.
7. Chain of ganglia on either side of vertebral
column and connected to spinal cord.
8. Process of neuron that transmits impulses
from cyton to effector organ.
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Answer:
1. Neurons
2. The myelin sheath
3. Motor or Efferent nerves
4. A reflex or reflex action
5. Prefrontal cortex
6. Meninges are Membranes
7. Sympathetic trunks
8. Synapse
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