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प्रश्न
Explain the Term: Natural reflex
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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.
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संबंधित प्रश्न
Name the following:
Five sense organs of human beings and the sensation perceived by each one.
Name the three main parts of the human brain.
Mention the three functions of the spinal cord.
Name the four principal tastes and the respective regions of the tongue concerned with their perception.
Complete the following table by filling in the blank spaces.
| Structure | Function |
| Yellow Spot | |
| Transfers impulse from inner ear to brain | |
| Helps to change the focal length of the eye lens | |
| Spinal cord | |
| Oval window | |
| Dynamic equilibrium |
Draw well labeled diagram of a ‘Neuron’ and name the following parts:
(1) Node of Ranvier (2) Nissil granules (3) Cyton
Complete the following sentence with appropriate word :
There are _______ neurons in our body.
Mention, if the following statement is True or False
The nerve impulse in the eye develops due to the chemical changes brought about in the sensitive cells (rods and cones) by the light energy of the image.
List out the functions of Endocrine system and Nervous system.
Which of the following is the correct description of Gyri and sulci?
