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प्रश्न
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 |
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उत्तर
| Application of stimulus on a resting nerve |
| ⇓ |
| Permeability of membrane changes |
| ⇓ |
| Na+ ions diffuse into the neuron from the ECF |
| ⇓ |
| Positive ions inside axon increases |
| ⇓ |
|
Membrane potential changes from – 70mV to + 30mV |
| ⇓ |
| Polarity reverses and depolarisation takes place |
| ⇓ |
| Repolarisation - potassium gates open |
| ⇓ |
| K+ ions diffuse out of the axon |
| ⇓ |
| The inside of the membrane (becomes less and less positive) becomes negative once again |
| ⇓ |
| Axoplasm becomes negatively charged and ECF becomes positive |
संबंधित प्रश्न
A person is showing symptoms like increased BMR, heart rate, pulse rate, blood pressure and deposition of fats in eye sockets. Name the disease he is suffering from.
Sketch and label formation of typical spinal nerve.
Dendrites transmit impulse ______ cell body and axon transmit impulse ______ cell body.
Neurotransmitters are removed from synaptic cleft by ____________ after transmission of impulse.
Which of the following statements is TRUE for medullated nerve fibre?
When stimulus is applied to a membrane of neuron, it causes rapid influx of ____________.
Resting membrane potential is maintained by ______.
During resting potential, the axonal membrane is polarised, indicate the movement of +ve and –ve ions leading to polarisation diagrammatically.
Write one word for the following:
Point of contact between two nerve cells.
During the phase of depolarisation of nerve impulse, ______.
