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प्रश्न
Which parts of the body form the central nervous system?
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उत्तर
The central nervous system consists of the brain and the spinal cord.
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संबंधित प्रश्न
Nervous system is absent in _____________.
What is the long fibre of a neuron known as?
Name the two types of coordination which take place in our body.
Multiple choice question. Tick (✓) the correct choice:
Nervous system in humans consists of
- brain and nerves
- brain and spinal cord
- brain, spinal cord and nerves
- none of the above
Draw a labelled diagram to show the structure of skin.
Draw a labelled diagram of eye.
What are voluntary and involuntary actions? Which part of the nervous system controls them?
Define the following:
Reflex arc
Name the following:
Study of structure and functions of nervous system.
Name the following:
The peripheral matter of the brain.
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 |
Define the following:
Nerve impulse
Name the parts (a) to (e) in the following diagram.
What is the term given to the sequence of events occurring in the diagram?
Give Technical Term:
The chemical messenger by which the nerve impulse travels from one neuron to the other.
Complete the following sentence with appropriate word :
A bundle of axons enclosed in a tubular sheath is called _________.
Choose the Odd One Out:
Complete the following sentence with appropriate Word
A point of contact between two neurons is termed:
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. |
Which are the sensory cranial nerves?
The outermost layer of meninges:
