Depolarization of nerve impulse involves-

At resting stage nerve cells has –

Ions needed for nerve conduction is

Nerve impulses are initiated by nerve fibers only when the membrane shall become more permeable to –

The brain- stem includes the parts of

“Jumping of the action potential” at the nodes of Ranvier is known as –

The neurotransmitter which is not excitatory in function is–

The parts of the neurons that perform basic cellular functions such as protein synthesis are the –

Which of the following cell stop dividing after birth ?

Nerve fibres are surrounded by an insulating fatty layer called