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An action potential in the nerve fibre is produced when positive and negative charges on outside and the inside of the axon membrane are reversed because

all potassium ions leave the axon
more potassium ions enter the axon as compared to sodium ions leaving it
more sodium ions enter the axon as compared to potassium ions leaving it
all sodium ions enter the axon
Additional Questions

Which of the following nerves is the largest of all the cranial nerves?

Answer

Which one of the following cranial nerves is carrying the nerve fibres originating from the Edinger-Westphal nucleus?

Answer

Skeletal muscles are controlled by ______.

Answer

Which one of the followings is not correct about neuroglial cells?

Answer

Which one of the following aspects is an exclusive characteristic of living things?

Answer

Given below is a diagrammatic cross section of a single loop of human cochlea:
a diagrammatic cross section of a single loop of human cochlea
Which one of the following options correctly represents the names of three different parts?

Answer

During the propagation of a nerve impulse, the action potential results from the movement of

Answer

Examine the diagram of the two cell types A and B given below and select the correct option.


cell types

Answer

In the PNS, the neuroglial cells that form protective myelin sheaths are ______.

Answer

Patients suffering from cholera are given a saline drip because

Answer
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