Beginner Oculomotor Nerve Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. What is the principal somatic motor function of the oculomotor nerve?
- Motor innervation to the lateral rectus only
- Motor innervation to the superior oblique only
- Motor innervation to most extraocular muscles and levator palpebrae superioris
- Sensory innervation to the cornea
Q2. Which extraocular muscle is NOT innervated by the oculomotor nerve?
- Superior rectus
- Medial rectus
- Inferior rectus
- Lateral rectus
Q3. Which muscle supplied by CN III elevates the upper eyelid?
- Levator palpebrae superioris
- Superior oblique
- Orbicularis oculi
- Lateral rectus
Q4. Which cranial nerve number corresponds to the oculomotor nerve?
- CN VI
- CN IV
- CN III
- CN II
Q5. Which extraocular muscle supplied by CN III primarily adducts the eye?
- Inferior oblique
- Lateral rectus
- Medial rectus
- Superior oblique
Q6. Which oculomotor nucleus supplies the somatic motor fibers of CN III?
- Oculomotor nucleus
- Abducens nucleus
- Edinger-Westphal nucleus
- Trochlear nucleus
Q7. Which nucleus supplies the preganglionic parasympathetic fibers that travel in CN III?
- Hypoglossal nucleus
- Edinger-Westphal nucleus
- Motor trigeminal nucleus
- Facial motor nucleus
Q8. Through which opening does the oculomotor nerve enter the orbit?
- Inferior orbital fissure
- Optic canal
- Foramen rotundum
- Superior orbital fissure
Q9. Which parasympathetic effect is mediated through the oculomotor nerve?
- Parotid secretion
- Pupillary dilation and sweating
- Pupillary constriction and accommodation
- Lacrimal secretion only
Q10. Which ganglion receives preganglionic parasympathetic fibers carried by CN III?
- Ciliary ganglion
- Submandibular ganglion
- Pterygopalatine ganglion
- Otic ganglion