The gaps between Schwann cells found at regular intervals in peripheral system neurons are: A) synaptic clefts B) axon terminals C) nodes of Ranvier D) myelin sheaths

The nodes of Ranvier are the small gaps between the myelin sheaths that surround axons in peripheral nerves. These nodes play a crucial role in the conduction of nerve impulses, allowing for saltatory conduction where action potentials "jump" from one node to the next, significantly speeding up signal transmission along the nerve. Understanding the function of these nodes can help improve our grasp of how nerve damage affects communication within the nervous system. Disorders like multiple sclerosis involve the deterioration of myelin, leading to disrupted impulses and various neurological symptoms. So, learning about nodes of Ranvier can be both fascinating and educational in understanding nerve health!