CRANIAL NERVES

• how many cranial nerves

  12
• 3 CN nerves that are sensory

  olfactory, optic, vestibulocochlear
• olfactory

  smell
• optic

  sensory, sight
• oculomotor

  motor, opening eyes, movement of pupils
• trochlear

  motor, eyeball movement
• trigeminal

  both, entire face sensation, chewing
• abducens

  motor, lateral eye movement
• facial

  both, facial expressions, tears, salivation
• vestibulocochlear


  sensory, hearing
• Glossopharyngeal

  motor, swallowing, throat
• vagus

  both, digestive tract, heart
• accessory

  motor, shoulder, head rotation
• hypoglossal

  motor, tongue
• how many spinal nerves

  31