Answer question 19.
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Answers
1. The process is reflex action..through reflex arc.
1. Reflex action is the process.
2. (2) is neuron in the spinal cord.
(5) is spinal cord (CNS)
(6) is spinal cord's part.
3. Sense organs.
4. (3) is Sensory neuron : it conveys the the stimulus to the spinal cord.
(4) is Relay neuron : allows sensory and motor neurons to communicate.
(7) is Motor neuron : it conveys motor command to effectors.
Technical name of this pathway is reflex arc.
5. The exterior surface of the brain is composed of many millions of neuron bodies and the interior surface is made up of myelinated axons and incase of spinal cord it is reverse ie., the exterior surface of the spinal cord is composed of myelinated axons and the interior surface is composed of neuron bodies.
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