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The surface ectoderm, AKA external ectoderm, is one of the two early embryonic divisions of the ectoderm. The other early division of the ectoderm is the neuroectoderm. The surface ectoderm develops into the following structures: Skin (only the epidermis; the dermis is derived from the mesoderm) (along with glands, hair, and nails)
Several layers such as the neural tube, neural crest, surface ectoderm, and mesoderm contribute to the development of the eye. [2] [3] [4] Eye development is initiated by the master control gene PAX6, a homeobox gene with known homologues in humans (aniridia), mice (small eye), and Drosophila (eyeless). The PAX6 gene locus is a transcription ...
The capsule is a very thick basement membrane [2] and the thickness varies in different areas on the lens surface and with the age of the animal. It is composed of various types of fibers such as collagen IV , [ 3 ] laminin , etc. [ 4 ] [ 5 ] [ 6 ] and these help it stay under constant tension. [ 7 ]
1.1 Surface ectoderm. 1.1.1 Skin. 1.1.2 Anterior ... This is a list of cells in humans derived from the three embryonic germ layers – ectoderm, mesoderm, and ...
The FDA recently cautioned against using dozens of kinds of eyedrops — its third warning this year — leading to some wondering whether any drops are safe to use. Eye doctors weigh in.
The best eye drops for dry eyes in 2023 work to soothe various dry eye symptoms. Here, find expert-approved picks from Refresh, Systane, Opti-Free, and more.