Which option lists the complete set of the six extraocular muscles?

Which option lists the complete set of the six extraocular muscles?

• A. Medial Rectus; Inferior Rectus; Lateral Rectus; Superior Rectus; Superior Oblique; Inferior Oblique
• B. Medial Rectus; Superior Rectus; Lateral Rectus
• C. Medial Rectus; Inferior Rectus; Lateral Rectus; Superior Rectus; Superior Oblique; Inferior Oblique
• D. Orbicularis oculi; Levator palpebrae superioris; Superior Oblique; Inferior Oblique

Answer: (C)

The key idea is that there are six muscles that move the eyeball: four rectus muscles (medial, inferior, lateral, and superior) and two oblique muscles (superior and inferior). These six work together to position the eye in all directions and include both straight movements and rotational movements. The other items listed are not all about eye movement; some are muscles of the eyelids (like the ones that raise or close the eyelid). So the complete set you need is the six that directly move the eyeball: Medial Rectus, Inferior Rectus, Lateral Rectus, Superior Rectus, Superior Oblique, Inferior Oblique. This is why that option is the correct one.

The key idea is that there are six muscles that move the eyeball: four rectus muscles (medial, inferior, lateral, and superior) and two oblique muscles (superior and inferior). These six work together to position the eye in all directions and include both straight movements and rotational movements. The other items listed are not all about eye movement; some are muscles of the eyelids (like the ones that raise or close the eyelid). So the complete set you need is the six that directly move the eyeball: Medial Rectus, Inferior Rectus, Lateral Rectus, Superior Rectus, Superior Oblique, Inferior Oblique. This is why that option is the correct one.