optic placode
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Optic stalk — Transverse section of head of chick embryo of fifty two hours’ incubation … Wikipedia
Optic cup (embryology) — Transverse section of head of chick embryo of forty eight hours’ incubation. (Margin of optic cup labeled at upper right.) … Wikipedia
Optic vesicle — Transverse section of head of chick embryo of forty eight hours’ incubation. (Optic vesicle labeled at lower right.) … Wikipedia
placode — Local thickening in the embryonic ectoderm layer; the cells of the p. ordinarily constitute a primordial group from which a sense organ or ganglion develops. [G. plakodes, fr. plax, anything flat or broad, + eidos, like] auditory placodes SYN:… … Medical dictionary
Placode — A placode is an area of thickening in the embryonic epithelial layer where some organ or structure later develops. The term usually refers to cranial placodes, peripheral nervous system structures associated with the special senses and cranial… … Wikipedia
Otic placode — Latin placoda otica Code TE E5.15.2.0.0.0.4 In embryology, the otic placode is a thickening of the ectoderm on the outer surface of a developing embryo from which the ear develops. The ear, including both the vestibular system and the auditory… … Wikipedia
lens placode — n an ectodermal placode from which the lens of the embryonic eye develops * * * a thickened area of ectoderm directly overlying the optic vesicle in the early embryo, from which the lens develops … Medical dictionary
Embryology — 1 morula, 2 blastula 1 blastula, 2 gastrula with blastopor … Wikipedia
Lens (anatomy) — Crystalline lens (anatomy) Light from a single point of a distant object and light from a single point of a near object being brought to a focus by changing the curvature of the lens … Wikipedia
Cranial neural crest — Latin crista neuralis cranialis Code TE E5.15.1.0.2.0.1 The cranial neural crest is a form of neural crest.[1] The cranial neural crest arises in the anterior and populates the face and the pharyngeal arches giving rise to bones, cartilage, n … Wikipedia
