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प्रश्न
What type of reflex is the following?
Blinking of the eye
विकल्प
Simple reflex
Conditioned reflex
None of the above
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उत्तर
Simple reflex
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संबंधित प्रश्न
How are involuntary actions and reflex actions different from each other?
Briefly explain the following terms : Reflex action
Fill in the following blank with suitable word :
A neuron which carries an impulse to the brain is called a ........... neuron.
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Which of the following helps in maintaining posture and balance of the human body?
One of the following gives the correct sequence of the components in a reflex arc. This is:
State whether the following is simple reflex, conditioned reflex or neither of the two:
Blushing: ……………….
What type of reflex is the following?
Formation of goose-pimples in cold weather.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Sneezing
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.
- 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.
