Pars plana is the anatomic zone between the end of the ciliary body and which structure?

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Multiple Choice

Pars plana is the anatomic zone between the end of the ciliary body and which structure?

The structure being tested is the relationship of the pars plana to neighboring eye parts. The pars plana is the posterior, flatter portion of the ciliary body, and it sits just in front of the retina. In other words, it forms the boundary between the end of the ciliary body and the retinal surface. That’s why the correct answer is the retina—the other structures listed (iris, lens, cornea) are located in different anterior-posterior regions and aren’t the boundary behind the pars plana.

The structure being tested is the relationship of the pars plana to neighboring eye parts. The pars plana is the posterior, flatter portion of the ciliary body, and it sits just in front of the retina. In other words, it forms the boundary between the end of the ciliary body and the retinal surface. That’s why the correct answer is the retina—the other structures listed (iris, lens, cornea) are located in different anterior-posterior regions and aren’t the boundary behind the pars plana.

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