Senses

• CN I

  • Olfactory
  • Olfactory Epithelium
  • Smell
• CN II

  • Optic
  • Retina
  • Vision
• CN III

  • Oculomotor
  • Midbrain
  • Eye movement; accommodation
• CN IV

  • Trochlear
  • Midbrain
  • Eye movement (superior oblique)
• CN V

  • Trigeminal
  • Pons
  • Sensation to face; chewing
• CN VI

  • Abducens
  • Pons
  • Eye movement ( lateral rectus)
• CN VII

  • Facial
  • Pons
  • Facial expression; taste to anterior 2/3 of tongue
• CN VIII

  • Acoustic
  • Pons
  • Hearing & balance
• CN IX

  • Glossopharyngeal
  • Medulla
  • Salivation; swallowing; taste to posterior 1/3 of tongue
• CN X

  • Vagus
  • Medulla
  • Digestion; taste to pharynx
• CN XI

  • Accessory
  • Medulla
  • Movement of trapezius & SCM
• CN XII

  • Hypoglossal
  • Medulla
  • Movement of tongue
• I

  • OLFACTORY
  • S
  • Smell
• II

  • OPTIC
  • S
  • Vision
• III

  • OCCULOMOTOR
  • M
  • Motor to four of six extrinsic eye muscle and upper eyelid: parasympathetic: constrict pupils, thicken lens
• IV

  • TROCHLEAR
  • M
  • Motor to one extrinsic eye muscle
• V

  • TRIGEMINAL
  • Both
  • Sensory to face and teeth, motor to muscle of mastication
• VI

  • ABDUCENS
  • M
  • Motor to one extrinsic eye muscle
• VII

  • FACIAL
  • Both
  • Sensory: taste; motor to muscles of facial expression; parasympathetic to salivary and tear glands
• VIII

  • VESTIBULOCOCHCLEAR
  • S
  • Hearing and balance
• IX

  • GLOSSOPHARYNGEAL
  • Both
  • Sensory: taste and touch to back of the tongue; motor to pharyngeal muscles; parasympathetic to salivary glands
• X

  • VAGUS
  • Both
  • Sensory to pharynx, larynx and visceras; motor to palate, pharynx and larynx; parasympathetic to viscera of the thorax and abdomen
• XI

  • ACCESSORY
  • M
  • Motor to two neck and upper back muscles
• XII

  • HYPOGLOSSAL
  • M
  • Motor to tongue muscles
• PARASYMPATHETIC NERVES

  • Inhibit release of glucose: stimulate gallbladder
  • Stimulate activity of intestines
  • Contract bladder
  • Promote erection of genitals
• PARASYMPATHETIC NERVES

  • Slow heartbeat
  • Constrict airways
  • Stimulate activity of stomach
• PARASYMPATHETIC NERVES

  • Rest and digest and diceste
  • Constrict pupils
  • Stimulate saliva
• SYMPATHETIC NERVES

  • Inhibits the gallbladder
  • stimulates the adrenal medulla to release adrenaline and noradrenalinestimulates orgasm in genitals of man and woman
  • relaxes urinary bladder
  • Relax airways
• SYMPATHETIC NERVES

  • rises the heart rate
  • inhibits the acitivity of the digestive organs
  • inhibits the activity of the pancreas
• SYMPATHETIC NERVES

  • "Fight or flight"
  • dilates pupils
  • inhibits saliva production
  • dilates bronchia
• Pain receptors (nociceptors)

  Respond to tissue damage
• Visceral Pain

  Known as referred pain