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The process pertaining to the initial formation of an organ from unspecified parts. The process begins with the specific processes that contribute to the appearance of the discrete structure, such as inductive events, and ends when the structural rudiment of the organ is recognizable, such as a condensation of mesenchymal cells into the organ rudiment. Organs are a natural part or structure in an animal or a plant, capable of performing some special action (termed its function), which is essential to the life or well-being of the whole. The heart and lungs are organs of animals, and the petal and leaf are organs of plants. In animals the organs are generally made up of several tissues, one of which usually predominates, and determines the principal function of the organ. The morphogenetic process whereby the foregut region specified to become the lung forms the initial left and right buds. The process whereby a highly ordered sequence of patterning events generates the branched structures of the lung, consisting of reiterated combinations of bud outgrowth, elongation, and dichotomous subdivision of terminal units. The pattern specification process by which an axis or axes is subdivided in space along the foregut to define an area or volume in which specific patterns of cell differentiation will take place. The process by which the anatomical structures of embryonic epithelia are generated and organized. Morphogenesis pertains to the creation of form. The regionalization process by which the identity of an organ primordium is specified. Identity is considered to be the aggregate of characteristics by which a structure is recognized. The process by which a specific region of the foregut is delineated into the area in which the lung will develop. The close range interaction of two or more cells or tissues that causes the cells of the foregut to change their fates and specify the development of the lung. The pattern specification process by which an axis or axes is subdivided in space to define an area or volume in which specific patterns of cell differentiation will take place or in which cells interpret a specific environment. The regionalization process by which specific areas of cell differentiation are determined along the anterior-posterior axis. The anterior-posterior axis is defined by a line that runs from the head or mouth of an organism to the tail or opposite end of the organism. The morphogenetic process by which a bud forms from an epithelial sheet. A bud is a protrusion that forms form the sheet by localized folding.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: lung field specification
Acc: GO:0060424
Aspect: Biological Process
Desc: The process by which a specific region of the foregut is delineated into the area in which the lung will develop.
Synonyms:
  • lung specification
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 7 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0060424 - lung field specification (interactive image map)
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