Beginner Abducens Nerve Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Which cranial nerve number corresponds to the abducens nerve?
- CN IV
- CN VII
- CN III
- CN VI
Q2. Which extraocular muscle is innervated by the abducens nerve?
- Medial rectus
- Lateral rectus
- Inferior oblique
- Superior oblique
Q3. What is the principal action of the lateral rectus muscle?
- Abduction of the eye
- Elevation of the adducted eye
- Adduction of the eye
- Pupillary constriction
Q4. Where is the abducens nucleus located?
- Medulla
- Cervical spinal cord
- Pons
- Midbrain
Q5. Which type of fibers does the abducens nerve carry?
- General sensory fibers only
- Taste fibers
- Preganglionic parasympathetic fibers
- Somatic motor fibers
Q6. At which brainstem junction does the abducens nerve emerge?
- Pontomedullary junction
- Midbrain-pontine junction dorsally
- Optic chiasm
- Cervicomedullary junction
Q7. Through which opening does CN VI enter the orbit?
- Optic canal
- Foramen rotundum
- Superior orbital fissure
- Inferior orbital fissure
Q8. Which eye movement is weakened by an abducens nerve palsy?
- Intorsion
- Accommodation
- Adduction
- Abduction
Q9. What type of diplopia is typical of an isolated unilateral CN VI palsy?
- Pure vertical diplopia
- Bitemporal hemianopia
- Horizontal diplopia
- Monocular blindness
Q10. Which statement best describes the abducens nerve?
- It supplies the superior oblique
- It is a somatic motor nerve to lateral rectus
- It is a sensory nerve from the cornea
- It is a parasympathetic nerve to the pupil