stomodaeum

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Related to stomodeal: stomodaeum

stomodaeum

[‚stō·mə′dē·əm]
(embryology)
The anterior part of the embryonic alimentary tract formed as an invagination of the ectoderm.
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References in periodicals archive ?
Stony corals, are naturally exposed to resuspended sediments during storms and not entirely defenseless, possessing differing abilities at actively clearing their tissues of debris in one or more of four ways, ciliary action, tentacular utilization, stomodeal distension, and the secretion and shedding of mucus (Hubbard and Pocock 1972, Stafford-Smith 1993).
Foxa represses the mesodermal fate in the vcg2 endomesoderm, is required in postgastrular development for the expression of gut-specific genes, and is necessary for stomodeal formation (Oliveri et al.
One band forms in the lateral stomodeal region, while a second passes immediately posterior to the stomodeum.
An anterior ventral depression marking the position of the stomodeal invagination was also evident (Figs.
In histological sections the neuropil of the cerebral ganglion is visible anterior and dorsal to the stomodeal opening (Fig.
The anterior end of the apical lobe of such animals developed an ectodermal invagination (not illustrated) that is strikingly similar to stomodeal invaginations reported for other species by previous authors (Percival, 1944, 1960; Mano, 1960; Franzen, 1969).