. On the anatomy of vertebrates [electronic resource] . short ciliary: the iogi long ciliary arteries are chiefly distri-buted to the iris, and also give anteriorbranches to the sclerotic. The veinsof the choroid converge in arches tofour or five trunks which pierce thesclerotic at equal distance from eachother behind the middle of the eyeball:from this disposition, shown in fig. 196,they are termede venas vorticose. Thechoroid receives minute branches fromthe ciliary nerves in their passage tothe iris. On the outer part and anterior border of the choroidis a circle of grey softish substance,
. On the anatomy of vertebrates [electronic resource] . short ciliary: the iogi long ciliary arteries are chiefly distri-buted to the iris, and also give anteriorbranches to the sclerotic. The veinsof the choroid converge in arches tofour or five trunks which pierce thesclerotic at equal distance from eachother behind the middle of the eyeball:from this disposition, shown in fig. 196,they are termede venas vorticose. Thechoroid receives minute branches fromthe ciliary nerves in their passage tothe iris. On the outer part and anterior border of the choroidis a circle of grey softish substance, applied, like a band, roundthe margin of the aperture into which the iris is fitted: itadheres closely to the sclerotic at the line of the attachmentof the cornea. The ciliary nerves penetrate and subdivide inthis zone, which is termed £ ciliary ligament, fig. 197, a. On theinner surface of the anterior border of the choroid is a circle oflongitudinal folds of that membrane, called ciliary processes, 1 According to the careful admeasurements in 254 ANATOMY OF VERTEBRATES. collectively i ciliary zone, or e corpus ciliare? fig. 198. Of thesefolds, in Man, there are from sixty to seventy, about two lines inlength, but alternately a little longer and shorter. The free centralor internal border of the fold
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