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प्रश्न
How does an impulse travel across a synapse?
उत्तर
The impulse travels across a synapse in one direction only, always from the axons to the cells — body, and dendrites of the next neuron. Acetylcholine prevents its backflow.
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संबंधित प्रश्न
Differentiate between Spinal nerves and Cranial nerves (number of nerves).
Rearrange the following in correct sequence pertaining to what is given within brackets at the end.
axon endings → nucleus → Dendrites → axon → perikaryon → Dendron(Neutron structure)
What does the neural tissue consist of?
Which type of neuroglial cells are depicted in the given diagram?
Which cells are responsible for formation of myelin sheath?
Assertion: Impulse travels from dendrite to cell body and then along the axon to its end.
Reason: Information acquired at the end of the dendrite tip of a nerve cell sets of an electric impulse.
In a neuron, conversion of electrical signal to a chemical signal occurs at/in
Label the parts of a neuron in the given figure.
The mammalian nervous system uses both electrical and chemical means to send signal via neurons. Which part of the neuron receives impulses?
Name the following:
Three main parts of the neuron