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5 Written questions

5 Matching questions

  1. Explain the function of the pterygopalatine ganglion.
  2. What are the structures of the:
    1. anterior base of the skull
    2. medial base of the skull
    3. posterior base of the skull
  3. What are the divisions of the pharynx.
  4. Explain branching of the internal carotid artery.
  5. Explain the internal acoustic meatus?
  1. a Splits into:
    1. opthalmic (eye supply)
    2. Middle cerebral (lateral side of brain)
    3. Anterior cerebral (anterior medial portion of the brain)
    Anastomoses with the vertebral artery.
  2. b 1. cribiform plate with holes for the olfactory nerve
    2. Carotid canal, foramen ovale
    3. Magnum foramen, internal accousti meatus, jugular foramen
  3. c 1. Nasopharynx
    2. Oropharynx
    3. Laryngopharynx
  4. d CN 7 and CN 8 (Facial and vestibulacoclear) leave the skull.
  5. e Behind maxiallary sinus. Postganglionic sympathics from greater petrosal nerve (facial) for parasympth. of nasal/lacramal/palatine glands. also branches of the trigeminal

5 Multiple choice questions

  1. Sphenoid ridge- Anterior from medial
    Petrous ridge- medial from posterior
  2. Enters the internal acoustic meatus to hit the geniculate ganglion. Main branch goes out the stylomastoid foramen to supply face muscles, while it sends a chorda tympani branch to join lingual to go to submandibular/mental glands and carry taste. A smaller branch leaves geniculate ganglion called the greater petrosal nerve to hit the pterygopalatine ganglion and supply other glands.
  3. 1. Cochlear (for hearing) in the spiral part of the middle ear goes to the spiral ganglion (cell bodies)
    2. Vestibular (balance) in the vestibular appartus goes to the vestibular ganglion (cell bodies)
    Axons from both of these converge to leave middle ear to the brain.
  4. Abducent- Lateral rectus
    Trochlear- Superior oblique
  5. Where the jugular vein leaves as well as CN 9, 10, 11. (Vagus, glosspharngeal, accessory).

5 True/False questions

  1. Explain the peripheral pathway of the CNVII- oculomotor nerve.Receptors in the nose travel to the cell bodies in the olfactory bulb that sits on the cribiform plate of the ethmoid bone. Here axons continue to the brain.


  2. What are the branches of the facial nerve?Sensory- glossopharngeal
    Motor- vagus


  3. Explain where the trigeminal nerve exits externally.1. Supraorbital notch
    2. Infraorbital foramen
    3. Mental foramen


  4. Explain the specific branches of the mandibular nerve.Has the lingual (sensation to tonuge) and the mental (sensation to mandible) components.


  5. What muscles responsible for extortion and intorsion of the eye?Extorsion: Inferior oblique and rectus
    Intorsion: Superior oblique and rectus


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