AP PSYCHOLOGY

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: -Nodes of Ranvier. These are the gaps formed between the myelin sheath where the axons are left uncovered. Because the myelin sheath is largely composed of an insulating fatty substance, the nodes of Ranvier allow the generation of a fast electrical impulse along the axon.

Detailed explanation-5: -Components: The node of Ranvier is an unmyelinated part of the axon. The entire axon contains actin microfilaments and microtubules as part of its cytoskeleton.