What are the gaps between myelinated stretches called?

1. Myelin does not cover an axon continuously. 2. The wrapped stretches between gaps are named. 3. The length of the axon between each gap, wrapped in myelin, is referred to as an axon segment. 4. So the answer is axon segments. _Source: OpenStax 'Anatomy and Physiology 2e', Ch 12 'The Nervous System and Nervous Tissue'_