Which structure of the eye is connected to six muscles to enable movement?

The structure of the eye that is connected to six muscles for movement is the sclera. The sclera serves as the white outer coating of the eyeball and provides both structural support and protection to the inner components of the eye. The eye muscles that attach to the sclera are responsible for controlling the movement of the eye in various directions. These extraocular muscles allow for the movement and alignment of the eyes, enabling functions such as tracking objects and maintaining binocular vision. This intricate system allows for precise eye movements, which are essential for proper visual function.

In contrast, the pupil is the opening that regulates the amount of light entering the eye but does not have muscles attached to it for movement. The iris is the colored part of the eye that controls the size of the pupil, also lacking muscle connections for eye movement. The conjunctiva is a thin membrane covering the front of the eye and the inner eyelids, serving primarily a protective function, and it doesn't play a role in eye movement either.