ENDODERMAL - 2 reference results
Endoderm, (sometimes called Entoderm) is one of the germ layers formed during animal embryogenesis. Cells migrating inward along the archenteron form the inner layer of the gastrula, which develops into the endoderm.
The endoderm consists at first of flattened cells, which subsequently become columnar. It forms the epithelial lining of the whole of the digestive tube except part of the mouth, pharynx and the terminal part of the rectum (which are lined by involutions of the ectoderm), the lining cells of all the glands which open into the digestive tube, including those of the liver and pancreas, the epithelium of the auditory tube and tympanic cavity, of the trachea, bronchi, and alveoli of the lungs, of the urinary bladder and part of the urethra, and that which lines the follicles of the thyroid gland and thymus.
Production
The following graph represents the products produced by the endoderm.
| Germ Layer | Category | Product |
|---|---|---|
| Endoderm | General | Gastrointestinal tract |
| Endoderm | General | Respiratory tract |
| Endoderm | General | Endocrine glands and organs (liver and pancreas) |
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See also
Notes
References
- Evers, Christine A., Lisa Starr. Biology:Concepts and Applications. 6th ed. United States:Thomson, 2006. ISBN 0-534-46224-3.
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Last updated on Thursday October 02, 2008 at 16:11:29 PDT (GMT -0700)
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This article is licensed under the GNU Free Documentation License.
Last updated on Thursday October 02, 2008 at 16:11:29 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
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