Where are ciliary bodies located?

Where are ciliary bodies located?

• A. Anterior chamber of the eye
• B. Iris
• C. Posterior chamber of the eye
• D. Vitreous body

Answer: (C)

The ciliary body sits as a ring of tissue behind the iris, forming part of the uveal tract. Its position places it in the posterior chamber—the narrow space between the iris and the lens—where the ciliary processes extend into and around the lens. This location is important because the ciliary processes produce aqueous humor that fills the anterior segment, and the ciliary muscle within the ciliary body adjusts lens shape for focusing. It is not in the anterior chamber (which is in front of the iris) and not in the vitreous body (which lies behind the lens in the posterior segment), so the posterior chamber is the correct location.

The ciliary body sits as a ring of tissue behind the iris, forming part of the uveal tract. Its position places it in the posterior chamber—the narrow space between the iris and the lens—where the ciliary processes extend into and around the lens. This location is important because the ciliary processes produce aqueous humor that fills the anterior segment, and the ciliary muscle within the ciliary body adjusts lens shape for focusing. It is not in the anterior chamber (which is in front of the iris) and not in the vitreous body (which lies behind the lens in the posterior segment), so the posterior chamber is the correct location.