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The Twelve Cranial Nerves

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Terms in this set (12)

  • What is the function of the Olfactory nerve (Cranial Nerve I)?
    The Olfactory nerve is responsible for the sense of smell.
  • What is the main role of the Optic nerve (Cranial Nerve II)?
    The Optic nerve transmits visual information from the retina to the brain.
  • What functions does the Oculomotor nerve (Cranial Nerve III) control?
    It controls most eye movements, eyelid elevation, and pupil constriction.
  • What is the function of the Trochlear nerve (Cranial Nerve IV)?
    The Trochlear nerve controls the superior oblique muscle, enabling downward and inward eye movement.
  • What are the three branches of the Trigeminal nerve (Cranial Nerve V)?
    Ophthalmic, Maxillary, and Mandibular branches, responsible for facial sensation and chewing muscles.
  • What is the function of the Abducens nerve (Cranial Nerve VI)?
    It controls the lateral rectus muscle, allowing lateral eye movement.
  • What does the Facial nerve (Cranial Nerve VII) control?
    It controls facial expressions, taste from the anterior two-thirds of the tongue, and some salivary glands.
  • What is the role of the Vestibulocochlear nerve (Cranial Nerve VIII)?
    It is responsible for hearing and balance.
  • What functions does the Glossopharyngeal nerve (Cranial Nerve IX) serve?
    It controls taste from the posterior one-third of the tongue, swallowing, and some salivary glands.
  • What is the function of the Vagus nerve (Cranial Nerve X)?
    It controls parasympathetic functions of the heart, lungs, digestive tract, and also contributes to swallowing and speech.
  • What does the Accessory nerve (Cranial Nerve XI) control?
    It controls the sternocleidomastoid and trapezius muscles, aiding head movement and shoulder elevation.
  • What is the function of the Hypoglossal nerve (Cranial Nerve XII)?
    It controls tongue movements essential for speech and swallowing.