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प्रश्न
The outermost layer of meninges:
पर्याय
Pia mater
Arachnoid layer
Grey matter
Dura mater
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उत्तर
Dura mater
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संबंधित प्रश्न
What is voluntary nervous system?
In a synapse, chemical signal is transmitted from :
(a) axon to cell body of the same neuron
(b) cell body to axon end of the same neuron
(c) dendrite end of one neuron to axon end of adjacent neuron
(d) axon end of one neuron to dendrite end of adjacent neuron
In a neuron, the conversion of electrical signal to a chemical signal occurs at/in:
Find the odd-one out, giving reasons:
Pinna, eardrum, cochlea, ear canal
Name the following:
Flap like structure of outer ear.
Draw the following diagram:
Draw a neat labeled diagram of a neuron.
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. |
The cerebrum controls the voluntary actions of our body.
The nervous system consists of bones, cartilages, and joints.
Eight pairs of spinal nerves originate from ______ part of vertebral column.
