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stomodeum
sto·mo·de·um also sto·mo·dae·um S0774800 (stō′mə-dē′əm)n. pl. sto·mo·de·a also sto·mo·dae·a (-dē′ə) The anterior or oral portion of the digestive tract of an embryo.
[New Latin : Greek stoma, mouth + Greek hodaios, on the way (from hodos, road).]
sto′mo·de′al (-dē′əl) adj.sto•mo•de•um (ˌstoʊ məˈdi əm, ˌstɒm ə-)
n., pl. -de•a (-ˈdi ə) a depression in the ectoderm of the oral region of a young embryo, which develops into the mouth and oral cavity. [1875–80; < New Latin < Greek stóm(a) stoma + hodaîon on the way] sto`mo•de′al, adj. stomodeum
stomodeum [sto″mo-de´um] the ectodermal depression at the head end of the embryo, which becomes the front part of the mouth.sto·mo·de·um (stō'mō-dē'ŭm), 1. A midline ectodermal depression ventral to the embryonic brain and surrounded by the mandibular arch; when the buccopharyngeal membrane disappears, it becomes continuous with the foregut and forms the mouth. Synonym(s): stomatodeum2. The anterior portion of the insect alimentary canal, consisting of mouth, buccal cavity, pharynx, esophagus, crop (frequently a diverticulum), and the proventriculus. [Mod. L. fr. G. stoma, mouth, + hodaios, on the way, fr. hodos, a way] stomodeum also stomodaeum (stō′mə-dē′əm)n. pl. stomo·dea also stomo·daea (-dē′ə) The anterior or oral portion of the digestive tract of an embryo.
sto′mo·de′al (-dē′əl) adj.sto·mo·de·um , stomatodeum (stō'mō-dē'ŭm, -mă-tō-dēŭm) 1. A midline ectodermal depression ventral to the embryonic brain and surrounded by the mandibular arch; when the buccopharyngeal membrane disappears, the stomodeum becomes continuous with the foregut and forms the mouth. 2. The anterior portion of the insect alimentary canal. [Mod. L. fr. G. stoma, mouth, + hodaios, on the way, fr. hodos, a way]sto·mo·de·um , stomatodeum (stō'mō-dē'ŭm, -mă-tō-dēŭm) A midline ectodermal depression ventral to the embryonic brain and surrounded by the mandibular arch; when the buccopharyngeal membrane disappears, the stomodeum becomes continuous with the foregut and forms the mouth. [Mod. L. fr. G. stoma, mouth, + hodaios, on the way, fr. hodos, a way] |