The extraocular muscles are a group of six muscles that control the movement of the eyeball. These muscles allow the eyes to move in various directions, enabling us to track objects, focus on different points, and maintain binocular vision. The six muscles include the superior rectus, inferior rectus, medial rectus, lateral rectus, superior oblique, and inferior oblique. Each muscle has a specific function, such as elevating, depressing, or rotating the eye. They are innervated by different cranial nerves, primarily the oculomotor nerve, trochlear nerve, and abducens nerve. Proper functioning of these muscles is essential for clear and coordinated vision.