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प्रश्न
Define Saltatory conduction.
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उत्तर
Saltatory conduction is the rapid passage of action potential along myelinated nerves from one node of Ranvier to the other.
संबंधित प्रश्न
Explain the role of Na+ in the generation of action potential.
Complete the flowchart of the process of conduction of nerve impulses.
| Application of stimulus on a resting nerve |
| ⇓ |
| Permeability of membrane changes |
| ⇓ |
| ______________________________ |
| ⇓ |
| Positive ions inside axon increases |
| ⇓ |
| ________________________________ |
| ⇓ |
| Polarity reverses and depolarisation takes place |
| ⇓ |
| Repolarisation - potassium gates open |
| ⇓ |
| ______________________________ |
| ⇓ |
| ______________________________ |
| ⇓ |
| Axoplasm becomes negatively charged and ECF becomes positive |
Which ions is the resting membrane more permeable to?
Neurotransmitters are removed from synaptic cleft by ____________ after transmission of impulse.
Under which of the following conditions will the ionic gradients across the resting membrane be maintained?
Which of the following is TRUE for the external tissue fluid in polarized state?
During resting potential, the axonal membrane is polarised, indicate the movement of +ve and –ve ions leading to polarisation diagrammatically.
Explain the process of the transport and release of a neurotransmitter with the help of a labelled diagram showing a complete neuron, axon terminal and synapse.
Write a short note on the following:
Synapse
Write one word for the following:
Point of contact between two nerve cells.
