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The process whose specific outcome is the progression of sensory organs over time, from its formation to the mature structure. The process whose specific outcome is the progression of the posterior lateral line over time, from its formation to the mature structure. The posterior lateral line consists of small sensory patches (neuromasts) located superficially on the skin or just under the skin in fluid-filled canals on the body and trunk of all fishes and most amphibians. The posterior lateral line develops from cranial ectodermal placodes situated behind the ear. 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 process whereby a relatively unspecialized cell acquires specialized features of a posterior lateral line neuromast support cell. Support cells are non-sensory cells of the neuromast that extend between the sensory hair cells from the basement membrane to the apical surface; they are surrounded by mantle cells. The process by which a migrating neuromast primordium deposits clusters of undifferentiated cells (proneuromasts) along its migratory path in the developing posterior lateral line. The process whose specific outcome is the progression of the posterior lateral line neuromast cupula over time, from its formation to the mature structure. The cupula is secreted by mantle cells and the ciliary bundles of all of the hair cells of the neuromast are embedded in it. The cupula provides a mechanical linkage between the hair cells and the external hydrodynamic environment. The cupula of superficial neuromasts grows continuously, while the height of the cupula of canal neuromasts is limited by canal diameter. The process whose specific outcome is the progression of the neuromast over time, from its formation to the mature structure. The neuromast is the sensory organ of the lateral line and is composed of a population of sensory hair cells, and nonsensory supporting cells and mantle cells. Neuromasts are located superficially on the epithelium or in lateral line canals. The process whereby a relatively unspecialized cell acquires specialized features of a posterior lateral line neuromast mantle cell. (N.B. This may be development of neuromast mantle cell type or a set of cells of neuromast mantle cell type. This will involve the change of a cell or set of cells from one cell identity to another). Mantle cells are non-sensory cells that surround the sensory strip, separating the neuromast from the epidermis. Mantle cells secrete the cupula in which the ciliary bundles of all of the hair cells are embedded. The process whose specific outcome is the progression of the lateral line over time, from its formation to the mature structure. The lateral line consists of small sensory patches (neuromasts) located superficially on the skin or just under the skin in fluid-filled canals on the head and body of all fishes and most amphibians. The lateral line develops from cranial ectodermal placodes situated behind the ear and between the eye and ear. The process whose specific outcome is the progression of the posterior lateral line system over time, from its formation to the mature structure. The posterior lateral line system develops from cranial ectodermal placodes, situated behind the ear, that give rise to both the neuromasts and the posterior lateral line sensory nerves that innervate the neuromasts. The posterior lateral line system consists of small sensory patches (neuromasts) located superficially on the skin or just under the skin in fluid-filled canals on the head of all fishes and most amphibians. The neuromasts are innervated by several lateral line nerves, which project primarily to the hindbrain. The posterior mechanosensory 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. The process whereby a relatively unspecialized cell acquires specialized features of a posterior lateral line neuromast hair cell. (N.B. This may be development of neuromast hair cell type or a set of cell of neuromast hair cell type. This will involve the change of a cell or set of cells from one cell identity to another). Hair cells are the sensory receptors of the neuromast and are located in a portion of the neuromast called the sensory strip. Each hair cell of the neuromast is morphologically polarized as a result of the relative position of the single kinocilium and the clusters of stereocilia on its apical surface. There are approximately seven hair cells within each neuromast, with each hair cell innervated by afferent and efferent neurons.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: posterior lateral line neuromast development
Acc: GO:0048919
Aspect: Biological Process
Desc: 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.
Proteins in PDR annotated with:
   This term: 4 [Search]
   Term or descendants: 7 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0048919 - posterior lateral line neuromast development (interactive image map)
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