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Read the assertion and reson carefully t...

Read the assertion and reson carefully to mark the correct option out of the options given below:
Assertion : Medulla oblongata causes reflex actions like vomiting, coughing and sneezing
Reason : It has many nerve cells which control autonomic reflexes.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
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MOTION-NEUTRAL AND COORDINATION-Exercise -4
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  2. Assertion :- A neurotransmitter crosses the synapse and attaches to re...

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  3. Read the assertion and reson carefully to mark the correct option out ...

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  4. Assertion. Transmission of a nerve impulse across a synape is brought ...

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  5. A : Sense organs, do not interpret the stimulus, it is done by brain. ...

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  6. Assertion :- In human being, cerebrum is most developed part of brain....

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  7. Assertion :- Spinal cord act as a bridge between brain & organs of the...

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  8. Assertion : A cerebellum is related with skillful voluntary movement a...

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  9. Assertion :- Threshold stimulus is required for propagation of impulse...

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  10. Assertion :- Conditioned reflex is not present at birth. Reason:- In...

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  11. Assertion :- ANS is controlled by hypothalamus. Reason:- Parasympath...

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  12. Assertion :- Speed of nerve impulse is faster on medullated nerve fibr...

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  13. Assertion :- Neuron is the longest cell of human body. Reason:- It c...

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  14. Assertion :- Nerve impulse conduction is one way conduction. Reason:...

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  15. Assertion :- In a myelinated nerve fibre the impulse jumps from one no...

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  16. Assertion :- Minimum stimulus required to open Na+ VGC as the result o...

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  17. Assertion :- Midbrain, pons and medulla constitute to form brain stem....

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  18. Assertion :- All branches of spinal nerves except Ramus communicans ar...

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  19. Assertion :- Sensory neuron from toes to CNS is one of the longest ner...

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  20. Assertion :- Corpus callosum connect the two cerebral hemispheres. Rea...

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