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प्रश्न
Define the following:
Neuron
Define the following term:
Neuron
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उत्तर
Neurons are the building blocks of the nervous system and transmit information throughout the body.
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संबंधित प्रश्न
What is the function of receptors and effectors in our body?
What are the main organs of the human nervous system? Draw a labelled diagram to show the main organs of the human nervous system.
State whether the following statement is true (T) or false (F):
Retina is present on the outer surface of the eye.
With the help of a suitable diagram describe the structure of a neuron.
State whether the following statement is true (T) or false (F):
The largest part of the brain is the cerebrum.
Mention if the following statement is true (T) or false (F) Give reason.
Flavour and taste are one and the same thing.
Answer the following questions briefly:
Explain how the human eye adapts itself to bright light and dim light.
Name the following:
The peripheral matter of spinal nerve.
Distinguish between the following pair of words:
Adrenalin and acetylcholine
Choose the correct answer.
Man has ______ pairs of spinal nerves.
Complete the following sentence with appropriate word :
There are _______ neurons in our body.
Complete the following sentence with appropriate word :
Optic nerve is a type Sensory nerve, whereas spinal nerves are __________ nerves
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. |
Multiple choice question.
___________ is in direct contact of brain in human.
What is the function of the red nucleus?
Which cells of PNS secrete myelin sheath around the nerves?
Which of the following statements is TRUE for Wernicke's area?
Which of the following parts is joined by the corpus callosum?
What is arbour vitae?
How many spinal nerves are there, and to which groups they belong?
