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Anatomy Week 15 Test

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5 Written Questions

5 Matching Questions

  1. What is the difference between the optic nerve and the optic track? How does crossing work in the nerves of the optic nerve.
  2. What are the functions of the trigeminal nerve (CNV)
  3. Explain the peripheral pathway of the CNI- Olfactory nerve.
  4. What are the branches of the facial nerve?
  5. What muscles responsible for adduction and abduction of the eye?
  1. a 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. b Sensory/motor
    Opthalmic- sensation to forehead and cornea
    Maxillary- sensation to maxillary and upper teeth
    Mandibular- sensation to madible and works chewing muscles
  3. c Optic Nerve: eye to chiasm
    Optic Tract: chiasm to brain
    Nasal portion nerves cross in chiasm while the lateral portions do not. Thus left field processed by right side of the brain and vice-versa.
  4. d 1. Cervical
    2. Buccal
    3. Zygomatic
    4. Mandibular
    5. temporal
  5. e Adduction: Medial, Superior, Inferior rectus
    Abduction: Lateral, superior, inferior obliques

5 Multiple Choice Questions

  1. 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.
  2. Up- Superior oblique and inferior rectus
    Down- Inferior oblique and superior rectus
  3. Abducent- Lateral rectus
    Trochlear- Superior oblique
  4. CN 7 and CN 8 (Facial and vestibulacoclear) leave the skull.
  5. 1. Nasopharynx
    2. Oropharynx
    3. Laryngopharynx

5 True/False Questions

  1. What are the structures of the:
    1. anterior base of the skull
    2. medial base of the skull
    3. posterior base of the skull
    COPS:
    Ciliary (III), Otic (IX), Pterygopalatine (VII), Submandibular (VII).

          

  2. Where is the hypogloassal canal?On the side of the foramen magnum

          

  3. What muscles are responsible for opening and closing the eye?Opening- Levator palpebrae superioris
    Closing- orbicularis oculi

          

  4. Explain the pathway of the facial nerve (CNVII)Supplies muscle of the tongue. Especially the genioglossus muscle going from the tip of the mandible to the posterior portion of the tongue.

          

  5. What is the structure of duramatter.Two layers:
    1. meningeal layer (to tissue)
    2. periosteal layer (to the skull)
    The area in between the two is sinus where vein can travel.

          

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