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FBbt:00001761
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imaginal disc
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A sac shaped epithelial structure in the larva that gives rise to part of the adult integumentary system. One side of the sac consists of peripodial epithelium, the other of columnar epithelium. A single anterior-posterior compartment boundary bisects both peripodial membrane and columnar epithelium. Cells do not cross this boundary during growth and development of the disc. |
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FBbt:00000015
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thorax
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The main middle section of the insect body comprising three thoracic rings: the pro-, the meso- and the metathoraces which are more or less well fused and cask-like sometimes having on the upper lateral part one of two pairs of wings, while on the ventrolateral part each thoracic ring bears a pair of legs. |
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FBbt:00000003
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segment
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One of the repeated divisions of the whole organism. |
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FBbt:00001727
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larva
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FBbt:00002953
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pupa
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The pupa is the name given to the organism at the period of the life cycle that begins once larval/pupal apolysis is complete, as indicated by the expulsion of the larval armature. Early in this stage the legs and wings reach full extension along the abdomen. The stage ends when the pupal cuticle separates from the underlying epidermis (pupal/adult apolysis), and the eye cup becomes yellow at its periphery. The duration of this stage is approximately 32 hours at 25 degrees C, and spans from 132.2-164.3 hours after egg laying, or is the period of 12.2-44.3 hours after puparium formation. |
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FBbt:00000111
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ectoderm
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The outermost germ layer of the embryo. |
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FBbt:00002952
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prepupa
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The prepupa is the name given to the organism at the period of the life cycle that begins at puparium formation and ends when larval/pupal apolysis is complete, as indicated by the completion of imaginal head sac eversion and the expulsion of the oral armature of the larva. Duration at 25 degrees C is approximately 12 hours. It occurs 120-132.2 hours after egg laying, and is the period of 0-12.2 hours after puparium formation. |
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FBbt:00005023
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imaginal precursor
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Structure that proliferates to produce an imaginal disc (Bate and Martinez Arias, 1991). |
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FBbt:00007005
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epithelium
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Portion of tissue, that consists of one or more layers of cells with distinct apical-basal polarity, connected to each other by cell junctions. |
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FBbt:00001742
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larval thoracic segment
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Any segment (FBbt:00000003) that is part of some larval thorax (FBbt:00001741). |
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FBbt:00000016
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thoracic segment
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Any segment (FBbt:00000003) that is part of some thorax (FBbt:00000015). |
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FBbt:00001729
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larval segment
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Any segment (FBbt:00000003) that is part of some larva (FBbt:00001727). |
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FBbt:00001057
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neurogenic region
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FBbt:00001061
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ventral neurectoderm
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The ventrally/medially located ectodermal region of the trunk from which neuroblasts delaminate to form the ventral nerve cord. This region becomes distinct during stage 8 when its cells become enlarged compared to those in the adjacent dorsal ectoderm. |
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FBbt:00000110
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germ layer
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Primordium that is a primary subdivision of the embryo into regions based on tissue and cell-type fate and specification. Germ layers first become morphologically distinct during gastrulation. As a result of gastrulation, the endoderm becomes the inner-most layer, the mesoderm becomes the middle layer and the ectoderm becomes the outer layer. |
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FBbt:00005533
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ventral epidermis primordium
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FBbt:00001741
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larval thorax
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Any thorax (FBbt:00000015) that is part of some larva (FBbt:00001727). |
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FBbt:00025990
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ectoderm derivative
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|
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FBbt:00000001
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organism
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An individual member of the species Drosophila melanogaster. |
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FBbt:00007016
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material anatomical entity
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FBbt:00007006
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developing material anatomical entity
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FBbt:00005495
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primordium
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Primordia are populations of contiguous cells that are morphologically distinct and already correspond in extent to a later organ/tissue. |
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FBbt:00007009
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organism subdivision
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Anatomical structure that is a primary subdivision of whole organism. The mereological sum of these is the whole organism. |
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FBbt:00007001
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anatomical structure
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Material anatomical entity that has inherent 3D shape, whose parts are all connected and that is generated by coordinated expression of the organism's own genome. |
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FBbt:00004208
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developing embryonic structure
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Any developing material anatomical entity (FBbt:00007006) that is part of some embryo (FBbt:00000052). |
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FBbt:00007003
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portion of tissue
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Anatomical structure, that consists of similar cells and intercellular matrix, aggregated according to genetically determined spatial relationships. |
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FBbt:00007010
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multi-tissue structure
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Anatomical structure that has as its parts two or more portions of tissue of at least two different types and which, through specific morphogenetic processes, forms a single distinct structural unit demarcated by bona fide boundaries from other distinct structural units of different types. |
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FBbt:00005426
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anlage
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Anlagen are populations of contiguous cells, typically arranged in one plane, that are morphologically indistinct, but that already correspond in extent to a later organ/tissue. |
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FBbt:00000000
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germ layer derivative
|
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FBbt:00100313
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multicellular structure
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Anatomical structure that has multiple cells as parts. |
