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प्रश्न
Potential difference across resting membrane is negative. This is due to differential distribution of the following ions ______.
विकल्प
Na+ and K+
CO3++ and CI–
Ca++ and Mg++
Ca++ and CI–
उत्तर
Potential difference across resting membrane is negative. This is due to differential distribution of the following ions `underline(Na^+ and K^+)`.
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संबंधित प्रश्न
Explain the following process:
Transmission of a nerve impulse across a chemical synapse
Long answer question.
Explain the process of conduction of nerve impulses up to the development 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?
Match the Column - I with Column - II:
| Column I | Column II | ||
| i. | P - wave | p. | Depolarisation of ventricles |
| ii. | QRS complex | q. | Repolarisation of ventricles |
| iii. | T - wave | r. | Coronary ischemia |
| s. | Development of atria | ||
| t. | Repolarisation of atria |
The axoplasm inside the axon contains high concentration of (i) ions and low concentration of _(ii)_ ions, during the resting state of the neuron.
What is the average potential difference across the nerve cell membrane?
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 a short note on the following:
Synapse
