Zonule of Zinn
Schematic diagram of the human eye. (Zonular fibers labeled at upper left.)
The upper half of a sagittal section through the front of the eyeball. (Zonule of Zinn visible near center.)
Latin	zonula ciliaris
Gray's	subject #226 1018

The zonule of Zinn (Zinn's membrane, ciliary zonule) is a ring of fibrous strands connecting the ciliary body with the crystalline lens of the eye.

The zonule of Zinn is split into two layers: a thin layer which lines the hyaloid fossa and a thicker layer which is a collection of zonular fibers. Collectively, the fibers are known as the suspensory ligament of the lens^[1].

[edit] Notes

1. ^ Vision - via the optic nerve (CN II)

[edit] References

[edit] External links

• Diagram at unmc.edu
• Diagram at eye-surgery-uk.com
• Diagram and overview at webschoolsolutions.com
• ciliary+zonule at eMedicine Dictionary
• Histology at BU 08011loa

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v • d • e Sensory system – visual system – globe of eye (TA A15.2.1-6, GA 10.1005) Fibrous tunic (outer) Sclera Episcleral layer • Schlemm's canal • Trabecular meshwork Cornea Limbus • layers (Epithelium, Bowman's, Stroma, Descemet's, Endothelium) Uvea/vascular tunic (middle) Choroid Capillary lamina of choroid • Bruch's membrane • Sattler's layer Ciliary body Ciliary processes • Ciliary muscle Iris Stroma • Pupil • Iris dilator muscle • Iris sphincter muscle Retina (inner) Cells Photoreceptor cells (Cone cell, Rod cell) → (Horizontal cell) → Bipolar cell → (Amacrine cell) → Retinal ganglion cell (Giant retinal ganglion cells, Photosensitive ganglion cell) Muller glia Layers Inner limiting membrane • Nerve fiber layer • Ganglion cell layer • Inner plexiform layer • Inner nuclear layer Outer plexiform layer • Outer nuclear layer External limiting membrane • Layer of rods and cones • Retinal pigment epithelium Other Macula • Foveola • Fovea • Optic disc (Cup) Anterior segment Anterior chamber • Aqueous humour • Posterior chamber • Lens (Capsule of lens, Zonule of Zinn) Posterior segment Vitreous humour Other Ocular immune system • Tapetum lucidum • Keratocytes eye navs: anat/adnexa anat/pathways/physio/dev, noncongen/congen/neoplasia, eponymous signs, proc