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During the propagation of a nerve impulse, the action potential results from the movement of?
Options
(a) K⁺ ions from extracellular fluid to intracellular fluid
(b) Na⁺ ions from intracellular fluid to extracellular fluid
(c) K⁺ ions from intracellular fluid to extracellular fluid
(d) Na⁺ ions from extracellular fluid to intracellular fluid
Correct Answer:
Na⁺ ions from extracellular fluid to intracellular fluid
Explanation:
Total sum of physio-electrochemical changes that takes place along the length of nerve fibre is known as nerve impulse. Change in potential due to stimulation of nerve fibre is called action potential. During propagation of nerve impulse, Na⁺ enters inside so(+ve) change is formed inside the membrane. K⁺ ions come out.
Related Questions: - The characteristics of class Reptilia are :
- Blood calcium level is regulated by the hormone
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Topics: Locomotion and Neural Control
(33)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The characteristics of class Reptilia are :
- Blood calcium level is regulated by the hormone
- The natural cycles of carbon, oxygen, nitrogen, water and phosphorus, sulphur, etc
- The functional unit of mammalian kidney is
- Which one of the following conditions of the zygotic cell would lead
Topics: Locomotion and Neural Control (33)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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