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प्रश्न
Compare the following:
Resting potential and action potential
उत्तर
| Resting potential | Action potential | |
| 1. | The difference in electric potential across the recycled charge at rest is shown. | The exciton or outlook orchestra, is depolarized whenever stimulation is observed in any part of the axon. |
| 2. | A potential of -70 mV is generated in the plasma membrane, which is called the static phase potential. | At that place, the potential difference reduces to 30 mV, this is called active potential. |
| 3. | It is the potential difference across the nerve fibre when there is no conduction of nerve impulses. | It is the potential difference across nerve fibre when there is conduction of nerve impulses. |
| 4. | The resting potential describes what actually happens to a neuron when it is at rest. | An action potential occurs when a neuron sends a message down an axon that travels away from the neuron cell body. |
| 5. | The membrane is more permeable to K+ ions than to Na+ ions | The membrane is more permeable to Na+ ions than to K+ ions. |
APPEARS IN
संबंधित प्रश्न
Explain the following process:
Transmission of a nerve impulse across a chemical synapse
Explain the role of Na+ in the generation of action potential.
Long answer question.
Explain the process of conduction of nerve impulses up to the development of action potential.
Give function of astrocytes in nervous system.
Define Saltatory conduction.
Dendrites transmit impulse ______ cell body and axon transmit impulse ______ cell body.
What are the number of Na+ ions pumped out, and K+ ions pumped into the cell, with respect to the Na+ - K+ pump?
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 |
Neurotransmitters are removed from synaptic cleft by ____________ after transmission of impulse.
The axoplasm inside the axon contains high concentration of (i) ions and low concentration of _(ii)_ ions, during the resting state of the neuron.
Which of the following is TRUE for the external tissue fluid in polarized state?
Which of the following situations is responsible for resting membrane potential?
Identify the value of action potential.
Identify the correct path of transmission of nerve impulse.
Which of the following statements is TRUE for medullated nerve fibre?
Complete the statement by choosing appropriate match among the following -
| a. Resting potential | i. Chemicals involved in the transmission of impulses at synapses. |
| b. Nerve impulse | ii. Gap between the pre synaptic and post synaptic neurons |
| c. Synaptic cleft | iii. Electrical potential difference across the resting neural membrane |
| d. Neurotransmitters | iv. An electrical wave like response of a neuron to a stimulation |
Write a short note on the following:
Synapse
