Cranial Nerves

• What is the function of Cranial Nerve I?

  Sensory; innervates nasal epithelium
• What is the function of Cranial Nerve II?

  Sensory; innervates retina sensory fibers
• What is the function of Cranial Nerve III?

  Motor; controls eye muscles
• What is the function of Cranial Nerve IV?

  Motor; innervates dorsal oblique muscle
• What is the function of Cranial Nerve V?

  Both; has three branches
• What are the three branches of Cranial Nerve V and their functions?

  • Ophthalmic: innervates facial skin near eye and nose
  • Maxillary: innervates jaw muscles
  • Mandibular: innervates lower lip, tongue, teeth, lower jaw, and muscles of mastication
• What is the function of Cranial Nerve VI?

  Motor; controls lateral rectus muscle
• What is the function of Cranial Nerve VII?

  Both; controls facial muscles and glands
• What is the function of Cranial Nerve VIII?

  Sensory; innervates inner ear hair cells
• What is the function of Cranial Nerve IX?

  Both; controls pharyngeal muscles
• What is the function of Cranial Nerve X?

  Both; innervates pharynx and larynx
• What is the function of Cranial Nerve XI?

  Motor; controls cleidomastoid and trapezius
• What is the function of Cranial Nerve XII?

  Motor; controls throat and tongue muscles