stomodeum
[sto″mo-de´um] the ectodermal depression at the head end of the embryo, which becomes the front part of the mouth.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
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):
stomatodeum 2. 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]
Farlex Partner Medical Dictionary © Farlex 2012
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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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]
Medical Dictionary for the Dental Professions © Farlex 2012