Ciliary Body

The middle part of the second tunic,composed of ciliary processes, ciliary veins,ciliary muscles, ciliary nerves and arteries

Source: Ophthalmic Dictionary including pronunciation, derivation and definition of the words used in Optometry and Ophthalmology by James J. Lewis, Oph. D. Professor of Optometry in the Northern Illinois College of Ophthalmology and Otology, Chicago.