Which of the following extraocular eye muscles is not innervated by the oculomotor nerve?

The extraocular eye muscle that is not innervated by the oculomotor nerve is the lateral rectus. This muscle is instead innervated by the abducens nerve (cranial nerve VI). Another muscle, the superior oblique, is innervated by the trochlear nerve (cranial nerve IV). All other extraocular muscles (superior rectus, inferior rectus, medial rectus, inferior oblique, and levator palpebrae superioris) are innervated by the oculomotor nerve (cranial nerve III).