Question:

Depolarization of axolemma during nerve conduction takes place because of:

Updated On: Oct 6, 2023

Equal amount of Na⁺& K⁺move out across axolemma
Na⁺ move inside and K⁺ move more out side
More Na⁺ outside
None

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The Correct Option is B

Solution and Explanation

Depolarization of axolemma during nerve conduction takes place because more Na⁺ ions move inside the axon while K⁺ ions move more outside. This movement of ions is essential for generating action potentials, which are the electrical signals that transmit nerve impulses along neurons.

So, the correct option is (B): Na⁺ move inside and K⁺ move more out side.

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Concepts Used:

Neural Control and Coordination

Neural System:

Neurons are the most specialised cells in the nervous system of all animals, and they are responsible for detecting, accepting, and conveying numerous types of motives. The neurological system of low-spinal animals like Hydra is incredibly simple, consisting of a network of neurons. When the brain of an insect comprises a vast number of ganglia and neural tissues, it is optimally structured.

Coordination System:

Coordination is the process by which two or more organs work together to accomplish each other's duties. Increased muscle activity increases the supply of oxygen and the demand for energy while we exercise. When we cease exercising, our nerves, heart, lungs, and kidneys all return to normal. As a result, all of the organs' functions are properly integrated in order to conduct the exercise and supply the appropriate conditions while exercising. Similarly, in the human body, the neurological and endocrine systems work together to coordinate all of the organ activities.