Fill in the Blank QuestionFill in the blank question.Ciliary muscles of the eye attach to the perimeter of the by suspensory ligaments.

The correct answer to fill in the blank is "lens."

Explanation

Ciliary muscles are essential structures in the eye that are responsible for controlling the shape of the lens. When these muscles contract, they release tension on the suspensory ligaments (also known as zonules) that hold the lens in place, allowing the lens to become thicker for focusing on nearby objects (a process known as accommodation). Conversely, when the ciliary muscles relax, the tension on the suspensory ligaments increases, making the lens flatter for distant vision. Therefore, the completed statement reads: "Ciliary muscles of the eye attach to the perimeter of the lens by suspensory ligaments." This interaction is crucial for clear vision at varying distances.