Which of the following is NOT one of the six extraocular muscles?

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Prepare for the Certified Paraoptometric Assistant (CPOA) Exam. Study with extensive flashcards and multiple choice questions with explanations. Enhance your skills and knowledge to succeed.

Multiple Choice

Which of the following is NOT one of the six extraocular muscles?

Explanation:
Eye movement relies on six muscles that move the eyeball: the four rectus muscles (medial, lateral, superior, inferior) and the two oblique muscles (superior and inferior). The ciliary muscle, however, is a smooth muscle inside the ciliary body that changes the lens shape for focusing (accommodation). It does not move the eye itself, so it isn’t classified as an extraocular muscle.

Eye movement relies on six muscles that move the eyeball: the four rectus muscles (medial, lateral, superior, inferior) and the two oblique muscles (superior and inferior). The ciliary muscle, however, is a smooth muscle inside the ciliary body that changes the lens shape for focusing (accommodation). It does not move the eye itself, so it isn’t classified as an extraocular muscle.

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