Remember that the Schwann cells are made of myelin sheath which insulate the impulse, but also block the sodium ion/potassium ion channels. Therefore there has to be a point where the action potential 'jumps' to, and these are the gaps between the Schwann cells, they are called the Nodes of Ranvier.
The spaces along the axon and between the myelin sheath are known as the nodes of Ranvier. They are responsible for speeding up the signals that are transmitted along the axon of the nerve. While the myelin sheath consists of many layers that protect the axon, the nodes of Ranvier are uncovered, giving them the ability to produce an electrical charge.
The naked axon between Schwann cells is called the Node of Ranvier. It is a short unmyelinated segment of the axon where action potentials are generated during saltatory conduction. Nodes of Ranvier are essential for increasing the speed of nerve impulse transmission along myelinated neurons.
Node of Ranvier
In the fatty myelin sheath there are gaps between the axons. The myelin sheath gaps are referred to as the nodes of Ranvier.
The nodes Ranvier are spaced equally along the axon because of their function which is to transmit information to the different glands, muscles and neurons. The axon is also called a nerve fiber.
Nodes of Ranvier - band - ended in 2007.
Nodes of Ranvier - band - was created in 2000.
Nodes of Ranvier are most related to saltatory conduction. These are gaps in the myelin sheath along the axon where action potentials are regenerated, allowing for faster conduction of electrical impulses. Saltatory conduction is the rapid jumping of action potentials between these nodes in myelinated neurons.
Sensory neurons, also known as Afferent neurons carry information toward the CNS.
A Node of Ranvier is the space between two myelinated segments on an axon, while an internode is the space between two Nodes of Ranvier (alternativenly, the myelinated segment).
Axon collaterals emerge from the main axon at regular intervals called Nodes of Ranvier on a myelinated nerve. These points are where the myelin sheath is interrupted, allowing axon collaterals to branch off and communicate with other neurons or muscle fibers.