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Question
What is a reflex action? Explain with the help of an example.
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Solution
Reflex action is a rapid and automatic response to a stimulus. It is not under the voluntary control of the brain. For example, if we unknowingly touch a hot plate, we immediately move our hand away from it.
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RELATED QUESTIONS
Briefly explain the following terms : Reflex action
Which of the following is not a natural reflex action?
A. Knee-jerk
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(c) Name the tissue U.
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State whether the following is simple reflex, conditioned reflex or neither of the two.
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The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.
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- 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.
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- 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.
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