A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a synapse, the junction between a neuron and a target (neuron, muscle, or secretory cell).

A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of an extracellular matrix.

The process, occurring in the embryo, by which the anatomical structures of the medial fin are generated and organized. Medial fins are unpaired fins of fish, usually located dorsomedially or ventromedially and primarily used for stability while swimming.

The process in which the anatomical structures of the skin are generated and organized. The skin is the external membranous integument of an animal. In vertebrates the skin generally consists of two layers, an outer nonsensitive and nonvascular epidermis (cuticle or skarfskin) composed of cells which are constantly growing and multiplying in the deeper, and being thrown off in the superficial layers, as well as an inner, sensitive and vascular dermis (cutis, corium or true skin) composed mostly of connective tissue.

The orderly movement of a mesenchymal cell from one site to another, often during the development of a multicellular organism.

The process of introducing a phosphate group on to a protein.

The biological process in which a synapse between a motor neuron and a muscle is initially formed.

The chemotaxis process that directs the migration of a photoreceptor cell axon growth cone to its target in the optic lobe in response to a combination of attractive and repulsive cues.

Any process that modulates the frequency, rate or extent of neuromuscular junction development.

The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.

The portion of the plasma membrane surrounding a neuron projection.