Optic cup (embryology) | |
---|---|
![]() Transverse section of head of chick embryo of forty-eight hours’ incubation. (Margin of optic cup labeled at upper right.) | |
![]() Optic cup and choroidal fissure seen from below, from a human embryo of about four weeks. (Edge of optic cup labeled at upper right.) | |
Details | |
Carnegie stage | 13 |
Days | 36 |
Precursor | Optic vesicles |
Identifiers | |
Latin | cupula optica; caliculus ophthalmicus |
TE | cup (embryology)_by_E5.14.3.4.2.2.7 E5.14.3.4.2.2.7 |
Anatomical terminology |
Duringembryonic development of the eye, the outer wall of the bulb of theoptic vesicles becomes thickened and invaginated, and the bulb is thus converted into a cup, theoptic cup (orophthalmic cup), consisting of two strata of cells. These two strata are continuous with each other at the cup margin, which ultimately overlaps the front of thelens and reaches as far forward as the future aperture of thepupil.
The optic cup is part of thediencephalon and gives rise to theretina of the eye.
This article incorporates text in thepublic domain frompage 1001 of the 20th edition ofGray's Anatomy(1918)