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प्रश्न
Complete the following sentence with appropriate word :
A bundle of axons enclosed in a tubular sheath is called _________.
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उत्तर
A bundle of axons enclosed in a tubular sheath is called Nerve.
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संबंधित प्रश्न
Electrical impulse travels in a neuron from:
What are nerves?
State whether the following statement is true (T) or false (F):
Cerebellum maintains the balance of the body.
Distinguish between the following pair of words:
Nervous system and hormonal system
Distinguish between the following pair of words:
Adrenalin and acetylcholine
Give Technical Term:
The neuron which conducts impulse from the central nervous system to the organs.
State the Function:
Myelin sheath
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with the suitable idea given in Column ‘I’.
| Column I | Column II | ||
| (i) | Auditory canal | (a) | Channels pressure waves of air into the middle ear. |
| (ii) | Auditory (Eustachian tube) | (b) | Collects pressure waves of air. |
| (iii) | Auditory nerve | (c) | Converts pressure waves of air into vibrations of bone. |
| (iv) | Incus | (d) | Dissipates sound waves. |
| (v) | Malleus | (e) | Equalizes pressure between the middle ear and the atmosphere. |
| (vi) | Oval window | (f) | Provide information about the spatial orientation of the head. |
| (vii) | Pinna | (g) | Transfers vibrations from a bone to a fluid. |
| (viii) | Round window | (h) | Transfers vibrations from a bone to a membrane. |
| (ix) | Semi-circular canal | (i) | Transfers vibrations from a bone to a bone. |
| (x) | Stapes | (j) | Transfers vibrations from a membrane to a bone. |
| (xi) | Tympanic membrane | (k) | Transmits action potential to the auditory cortex. |
Answer the following question.
Describe the nervous system of cockroach.
Define stimulus.
