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प्रश्न
State whether the following is
The sudden application of brakes without thinking
विकल्प
simple reflex
conditioned reflex
None of the above
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उत्तर
conditioned reflex
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संबंधित प्रश्न
What is the role of the brain in reflex action?
The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions:
1) Name the phenomenon that is depicted in the diagram. Define the phenomenon.
2) Give the technical term for the point of contact between the two nerve cells.
3) Name the parts numbered 1, 2 and 3.
4) How does the arrangement of neurons in the spinal cord differ from that of the brain?
5) Mention two ways by which the spinal cord is protected in our body.
Name two parts of the body which contain receptors of chemical stimuli.
Give three examples of reflex actions.
Explain the difference between of the following pair of terms :
receptor and effector
The involuntary actions in the body are controlled by :
(a) medulla in forebrain
(b)medulla in hindbrain
(c) medulla in spinal cord
(d) medulla in midbrain
The contraction of pupil of the eye in the presence of bright light is an example of :
(a) Voluntary reflex
(b) Spinal reflex
(c) Cerebral reflex
(d) Adrenal reflex
State whether the following is simple reflex, conditioned reflex or neither of the two:
Sneezing: …………….
How is the mode of action in beating of the heart different from reflex actions? Give four examples.
Given alongside is a partial diagrammatic representation of a certain phenomenon pertaining to the nervous system.
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- Name the parts numbered 1-7.
- Name the phenomenon that the diagram depicts and define it.
- Give the technical term for the point of contact between two nerve cells.
- Name the parts not shown in the diagram that should be included to complete the pathway of the phenomenon.
