| Term: | posterior lateral line myelination |
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| Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. |
| Name: | posterior lateral line |
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| Synonyms: | midbody lateral line, midtrunk line, pll |
| Definition: | One of eight distinct lateral lines in the 4-day larva. The posterior lateral line runs along the horizontal myoseptum from the otic vessicle to the caudal fin. Lateral lines form a sensory system on the surface of the fish, consisting of small sensory patches (neuromasts) distributed in discrete lines over the body surface. The lateral line system is stimulated by local water displacements and vibrations, and detects propulsion of the fish through the water, as well as facilitating shoaling, prey capture, and predator and obstacle avoidance. (See Anatomical Atlas entry for lateral line by T. Whitfield.) |
| Ontology: | Anatomy Ontology [ZFA:0000944] |
| Name: | myelination |
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| Synonyms: | myelinogenesis |
| Definition: | The process in which myelin sheaths are formed and maintained around neurons. Oligodendrocytes in the brain and spinal cord and Schwann cells in the peripheral nervous system wrap axons with compact layers of their plasma membrane. Adjacent myelin segments are separated by a non-myelinated stretch of axon called a node of Ranvier. |
| Ontology: | GO: Biological Process [GO:0042552] QuickGO AmiGO |