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प्रश्न
State whether the following is simple reflex, conditioned reflex or neither of the two:
Lifting up a book: …………………..
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उत्तर
Conditioned
संबंधित प्रश्न
If we happen to touch a hot object unknowingly, we immediately pull back our hand. What is this type of action known as?
Name two parts of the body which contain receptors of chemical stimuli.
A neuron which carries an impulse to the brain is called a ______ neuron.
What is meant by receptors?
A person walks across a room in barefeet and puts his foot on a drawing pin lying on the floor. He lets out a cry. Explain what happens in his nervous system in bringing about this response.
Explain the difference between of the following pair of terms :
receptor and effector
All the voluntary actions of our body are controlled by :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
State whether the following is
Blinking
What will you do if someone pricks your hand with a needle? Elucidate the pathway of response with a neat labelled diagram.
The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.
 |
- Name the phenomenon shown in the figure and define the same.
- Identify the parts labelled as 1 and 2. Write one functional difference between these two.
- Name the bony protective covering and the membranous protective covering of the spinal cord.
- Label the guidelines 3 and 4.
- How is the labelled part 3 different from part 4 with respect to its composition (part of neuron)?
- Give the technical term for the point of contact between the two nerve cells.
- Name the fluid filled inside the central canal of spinal cord.
- Name the term used for a small gap between two neurons.
- Give one example of a neurotransmitter.
- Draw a neat diagram of a nerve cell and label the parts: Perikaryon, Node of Ranvier, Myelin sheath and Axon terminals.
