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Chemicals which are released at the syna...

Chemicals which are released at the synaptic junction are called

A

hormones

B

neurotransmitters

C

cerebrospinal fluid

D

lymph

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The correct Answer is:
B
A typical synapse consists of a bulbous expansion of a nerve terminal called a pre-synaptic knob lying close to the membrane of a dendrite.The cytoplasm of the synaptic knob contains mitochondria, smooth endoplasmic reticulum, microfilaments and numerous synaptic vesicles. Each vesicles contains neurotransmitter (chemical substance) responsible for the transmission of the nerve impulse across the synapse.
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NCERT FINGERTIPS-NEURAL CONTROL AND COORDINATION-Neural Control And Coordination
  1. Following is the figure of a saggital section of a human brain.Match t...

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  2. Two neurons, A and B, synapse onto a third neuron, C.If neurotransmitt...

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  3. Chemicals which are released at the synaptic junction are called

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  4. Potential difference across resting membrane is negatively charged. Th...

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  5. Resting membrane potential is maintained by

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  6. The function of our visceral organs is controlled by

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  7. Which of the following is not involved in knee-jerk reflex ?

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  8. An area in the brain which is associated with strong emotion is

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  9. Mark the vitamin present in rhodopsin

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  10. Human eye ball consists of three layers and it encloses

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  11. Wax gland present in the ear canal is called

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  12. The part of internal ear responsible for hearing is

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  13. The organ of Corti is a structure present in

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  14. While travelling to higher altitudes, people can feel pain in the ear ...

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  15. Assertion:This PNS comprises of all the nerves of the body associated ...

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  16. Assertion:Multipolar neurons have two or more axons and one dendrite ...

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  17. Assertion:Myelinated nerve fibres are present in spinal and cranial ne...

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  18. Assertion:The resting membrane of the neuron exhibits polarity of char...

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  19. Assertion:Electrical synapses are rare in our system. Reason:Impulse...

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  20. Assertion:Association areas are neither clearly sensory nor motor in f...

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