ANATOMY

Detailed explanation-1: -The nodes of ranvier are the gaps between myelin sheath. These gaps (approximately 1m in length) are generated by schwann cells . Electrical impulses transfer from these nodes. (c) The myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon.

Detailed explanation-2: -The Nodes of Ranvier are the gaps between the myelin insulation of Schwann cells which insulate the axon of neuron. The Node of Ranvier is the 1-2 micrometre gap between the glial cells of the myelin sheath. These glial cells are called Schwann cells, and they help to electrically insulate the neuron.

Detailed explanation-3: -Each gap in the myelin sheath-between internodes-is called the nodes of Ranvier. The nodes of Ranvier are rich in positive sodium ions. As the electrical signal or impulse travels along the axon, it jumps from one node to the next.

Detailed explanation-4: -(d) The gap between two adjacent myelin sheaths are calleds nodes of Ranvier.

Detailed explanation-5: -In neuroscience and anatomy, nodes of Ranvier (/ˈrɑːnvieɪ/ RAHN-vee-ay), also known as myelin-sheath gaps, occur along a myelinated axon where the axolemma is exposed to the extracellular space.