secondary vitreous

secondary vitreous
embryonic vitreous composed of densely packed fine fibrils formed around the primary vitreous by the inner layer of the optic cup.

Medical dictionary. 2011.

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  • Vitreous — A clear, jelly like substance that fills the middle of the eye. Also called the vitreous humor, humor in medicine referring to a fluid (or semifluid) substance. * * * 1. Glassy; resembling glass. 2. SYN: v. body. [L. vitreus, glassy, fr. vitrum,… …   Medical dictionary

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  • primary vitreous — the earliest vitreous in the embryo, formed from a mass of ectodermal and mesodermal fibrils between the optic cup and the lens vesicle and vascularized by the proliferating hyaloid system. It ceases to be formed when the lens capsule is formed,… …   Medical dictionary

  • vítreo secundario — Eng. Secondary vitreous Esbozo no vascularizado del humor vítreo que sustituye al vítreo primaro desde la sexta semana de vida embrionaria …   Diccionario de oftalmología

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  • Hyaluronan — Identifiers CAS number 9004 61 9  …   Wikipedia

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