Advertisements
Advertisements
प्रश्न
Explain the Term: Natural reflex
Advertisements
उत्तर
A natural reflex is the one in which no previous experience or learning is required and are inborn and protective, e.g., the sucking of milk of an infant from the breast of the mother or reflex of the eyelid.
APPEARS IN
संबंधित प्रश्न
Which signals will get disrupted in case of a spinal cord injury?
What are sense organs?
Mention the three functions of the spinal cord.
Fill in the blank:
The neurons carrying impulses from the brain to the muscles are called ..........................
Explain the Term:
Synapse
Name the following:
The dorsal root ganglion of the spinal cord contain cell bodies of which type of neurons.
Mention, if the following statement is True or False
A nerve impulse passes from one neuron to another across a synapse.
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?
Identify the match that pairs the nerve correctly with its type.
