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Questions
State the Function:
Myelin sheath
State the functions of the following:
Myelin sheath
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Solution
The myelin sheath covers the axon of a nerve cell, provides insulation and prevents indiscriminate distribution and leakage of nerve impulses.
RELATED QUESTIONS
What are the short fibres of a neuron known as?
Write one word in the space provided to complete the second pair of the related words pertaining to nervous system.
Memory : cerebrum : : breathing :
Balance : cerebellum : : reasoning :
Name the following:
Study of structure and functions of nervous system.
Match the terms of column I with those of column ll
| Column l | Column ll |
| (i) Lens | (a) Adjustment of light rays |
| (ii) Lachrymal gland | (b) Vision |
| (iii) Olfactory epithelium | (c) Secretion of tear |
| (iv) Cochlea | (d) Balance of the body |
| (v) Semicircular canal | (e) Hearing |
| (vi) Eyes | (f) Smell |
Choose the correct answer.
Man has ______ pairs of spinal nerves.
Explain the following term :
Gray matter
Differentiate between:
Afferent and Efferent Nerve.
Give Technical Terms:
The number of cranial and spinal nerves in man.
Long answer question
Krishna was going to school and on the way, he saw a major bus accident. His heartbeat increased and hands and feet become cold. Name the part of the nervous system that had a role to play in this reaction.
Trace the sequence of events which occur when you suddenly touch a hot object.
