pupillary zone

pupillary zone
the inner of two regions of the anterior surface of the iris, separated from the ciliary zone by the collarette.

Medical dictionary. 2011.

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  • zone — A segment; any encircling or beltlike structure, either external or internal, longitudinal or transverse. SEE ALSO: area, band, region, space, spot. SYN: zona (1) [TA]. [L. zona] …   Medical dictionary

  • ciliary zone — the outer of two regions of the anterior surface of the iris, separated from the pupillary zone by the collarette. Iris showing the pupillary and ciliary zones separated by the collarette …   Medical dictionary

  • Iris (anatomy) — Iris The iris is the blue area. The other structures visible are the pupil center and the white sclera surrounding the iris. The overlying cornea is pictured, but not visible, as it is transparent …   Wikipedia

  • collarette — 1. The sinuous, scalloped line in the iris that divides the central pupillary zone from the peripheral ciliary zone and marks the embryonic site of the atrophied minor vascular …   Medical dictionary

  • angle — The meeting point of two lines or planes; the figure formed by the junction of two lines or planes; the space bounded on two sides by lines or planes that meet. For angles not listed below, see the descriptive term; e.g., axioincisal, distobuccal …   Medical dictionary

  • Heterochromia iridum — Not to be confused with Heterochromatin or dichromatic (disambiguation). Heterochromia Classification and external resources A domesticated cat with complete heterochromia ICD …   Wikipedia

  • zona — 1. SYN: zone. 2. SYN: herpes zoster. [L. fr. G. zone, a girdle, one of the zones of the sphere] z. arcuata SYN: arcuate zone. z. ciliaris SYN: ciliary zone. z. corona SYN: costal fringe. z. dermatica a rid …   Medical dictionary

  • Heterochromia — DiseaseDisorder infobox Name = Heterochromia ICD10 = H21.24 ICD9 = ICD9|364.53In anatomy, heterochromia refers to a difference in coloration, usually of the iris but also of hair or skin. Heterochromia is a result of the relative excess or lack… …   Wikipedia

  • zona pupilar — Eng. Pupillary zone La más intensa de las dos regiones en que está dividida la cara anterior del iris por una línea irregular …   Diccionario de oftalmología

  • eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium

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