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Digitale Medien

The fine structure of the iris of the grass frog, Rana pipiens (1975)

Nolte, John ; Pointner, Felicitas

Springer

Cell & tissue research 158 (1975), S. 111-120

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Details

ISSN: 1432-0878

Schlagwort(e): Iris ; Rana pipiens ; M. dilatator, sphincter pupillae ; Electron microscopy ; Photosensitivity

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Summary The iris of the grass frog Rana pipiens, can respond to light even when isolated from the remainder of the animal. The iris is a three-layered structure, comprising a stromal layer and two layers of pigment epithelium. The sphincter pupillae, which is composed of pigmented smooth muscle cells, is embedded between the two layers of pigment epithelium. There is no dilator pupillae in this species. We have been unable to find any cells or any organelles in the iris which are anatomically specialized for photoreception in any obvious way.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00219954

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