The characteristic movement of cells from the dorsal ridge of the neural tube to a variety of locations in a vertebrate embryo.

A transition where an epithelial cell loses apical/basolateral polarity, severs intercellular adhesive junctions, degrades basement membrane components and becomes a migratory mesenchymal cell.

The collection of axons into a bundle of rods, known as a fascicle.

The process in which a relatively unspecialized cell acquires the specialized features of a Schwann cell. Schwann cells are found in the peripheral nervous system, where they insulate neurons and axons, and regulate the environment in which neurons function.

The process aimed at the progression of a Schwann cell over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell. Schwann cells are found in the peripheral nervous system, where they insulate neurons and axons, and regulate the environment in which neurons function.

The regrowth of fin tissue following its loss or destruction.

The process in which a non-myelinating glial cell membrane closes around an axon.

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.

The formation of compact myelin sheaths around the axons of the anterior lateral line nerve.

The process whose specific outcome is the progression of the posterior lateral line neuromast over time, from its formation to the mature structure. The neuromast is the sensory receptor of the anterior lateral line system and is composed of a population of sensory hair cells, and nonsensory supporting cells and mantle cells. Neuromast are located superficially on the epithelium or in lateral line canals.

The formation of compact myelin sheaths around the axons of the posterior lateral line nerve.

The process whose specific outcome is the progression of the cardiac myofibril over time, from its formation to the mature structure. A cardiac myofibril is a myofibril specific to cardiac muscle cells.

The process of creating a trabecula in the heart. A trabecula is a tissue element in the form of a small beam, strut or rod.

The orderly movement of a cell from one site to another that will contribute to the progression of the heart over time, from its initial formation, to the mature organ.