Neuro 2

• Cranial nerves has how many pairs

  12
• Responsible for smell

  CN 1
• No muscle

  CN 2
• PERRLA & Anisocoria

  CN 3
• CN 4

  Superior Oblique
• CN 4 code

  SO4
• CN 3 code

  Tri-chewminal
• Muscles of mastication (CN 3)

  • Masseter
  • Medial Pterygoid
  • Temporalis
  • Lateral Pterygoid
• ⭐️ What muscles do you use in biting a burger

  • Masseter
  • Medial Pterygoid
  • Temporalis
• Muscle to close mouth

  Lateral pterygoid
• CN 5v1

  Opthalmic
• CN 5v2

  Maxillary
• CN 5v3

  Mandibular
• Most painful condition can be found in what CN

  5 (Tic Doloreux)
• CN 6

  Lateral rectus
• CN 4 code

  SO4
• CN 7

  • Facial paralysis
  • Cannot recognize face
• Bell's palsy phenomenon

  • Bell's phenomenon- Upward rolling of eye
  • Marine Amat- Resisted jaw opening
  • Marcus gun- Deviation of jaw to contralateral side then it the eyes closes
• Balance + Hearing

  CN 8
• Posterior tongue sensation

  CN 9
• CN 7- Anterior tongue sensation

  CN 9- Posterior tongue sensation
• afferent gag reflex

  CN 9
• efferent gag reflex

  CN 10
• No gag reflex

  CN 9, 10
• Dysphagia management

  • Chin tuck
  • NGT
• Supplies SCM and Trapz

  CN 11
• Tongue movement

  CN 12
• Problem of motor component of speech

  Dysarthria
• General function

  Mixed: 1975

  Sensory: 1, 2, 8

  Motor: 3, 4, 6, 11, 12
• Codes ANS

  Vagal system: 19711 (1, 9, 7, 10, 11)

  Parasympathetic system: 1973

  Mixed: 1975
• Vagal system Nucleus ambiguus

  CN 9, 10, 11
• Vagal system Nucleus Solitarious

  CN 7, 9 , 10
• Nucleus aembiguus

  Motor
• Nucleus Solitarious

  Sensory
• Largest CN

  CN 5
• Longer CN intracranially

  CN 10
• Longer CN extracranially

  CN 4
• Thinnest CN

  CN 4
• Only CROSSED CN

  CN 4
• It forms the dorsum of the brain stem

  CN 4