Question

At the nodes of Ranvier there is a jumping of action potential. It is known as

• A. Recovery phase
• B. Active phase
• C. Saltatory conduction
• D. Neuro transmitter

Answer 1

Answer: (C)

Saltatory conduction

The myelinated neurons have the axons that are covered with the myelin sheath secreted by the Schwann cells. However, the myelin sheath is not continuous and there are some places called the nodes of Ranvier where the myelin sheath is absent. These are the places where the nerve impulse is made to move along the axon of the neuron. This type of nerve impulse conduction is called the saltatory conduction because the impulse appears to be jumping from one node to the next.

Hence, the correct answer is 'Saltatory conduction'