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In the presence of Ca^(2+) channel bloc...

In the presence of `Ca^(2+)` channel blockers, which of the following will be true ?

A

Neurotransmitter is released but `Na^(+)` channel of post -synaptic neuron will not open

B

Neurotransmitter is not released but `Na^(+)` channel of post - synaptic neuron will open up

C

Neurotransmitter is released but `K^(+)` channel of post - synaptic neuron open up

D

Neither neurotransmitter is released nor the `Na^(+)` channel of post - synaptic neuron open up

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-NEURAL CONTROL AND COORDINATION -EXERCISE
  1. For most excitable cells, the threshold stimulus is

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  2. Which of the following factor is responsible for resting membrane pot...

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  3. In the presence of Ca^(2+) channel blockers, which of the following w...

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  4. Which of the following is not a part of telencephalon ?

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  5. CSF is not present in

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  6. Mark the area of cerebral cortex responsible for complex functions lik...

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  7. Which of the following is not a function of Hypothalamus ?

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  8. One of the following is not the lobe of cerebral hemisphere

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  9. Highly vascular and closely inverting protective coat around brain i...

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  10. Genu and splenium are located in

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  11. Which of the following is not the main part of limbic system ?

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  12. Which part of the limbic system converts information from short term t...

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  13. Activities of cerebellum are

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  14. Nerve cell body of pre-ganglionic fibre of sympathetic nervous system ...

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  15. In reflex action the reflex arc is formed by

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  16. Reflex action exhibited by

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  17. Which of the following statement is not correct regarding epinephrine...

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  18. Which of the following component is not common in all types of spinal ...

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  19. Mark the cranial nerves involved in communicating the sense of taste

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  20. Which is a function of parasympathetic nervous system ?

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