Anatomy E4, II, Oral Cavity/Guttural Pouch

  1. trangles => inflammation of _____ lnn
    Lateral & Medial Retropharyngeal lnn
  2. Borders of Viborg's Triangle:
    • Rostral: Angle of the Mandible
    • Caudo-dorsally: Sternocephalicus m
    • Ventrally: Linguofacial V
  3. ______ occurs when the opening of the auditory tube malfunctions and allows air in, but not out, causing swelling of the _____
    • Guttural Pouch Tympany
    • Parotid Region
  4. Two methods for surgically draining the guttural pouch:
    • Through the Viborg's Triangle
    • Pass a curved tip urinary catheter through the ventral meatus, pharynx and into the opening of the auditive tube
  5. Mycotic infection of the guttural pouch can lead to....
    • Rupture of internal carotid -> epitaxis
    • Damage to Vagosympathetic Trunk
  6. In the equine eye, the ___ is well developed
    Third Eyelid
  7. Shape of the Equine Pupil:
    Transversly Elliptical
  8. Tapetum Lucidum is present in _____ and absent in _____
    • Present in: Ungulates and Dogs
    • Absent in: Pigs
  9. Aqueous Humor that protects the equine retina:
    Granula Iridica
  10. The largest mastication muscle of herbivores:
    • Masseter M
    • (assists in venous return)
  11. The ____ vein depends of the Masseter M for drainage
    Buccal Vein
  12. The Lateral Retropharyngeal lnn drains _____ and efferents go to ___, ___ & ___
    Deep parts of the head

    • Medial Retropharyngeal lnn
    • Cr Deep Cervical
    • Tracheal Duct
  13. "Master ln of the head"
    Medial Retropharyngeal ln
  14. Lateral Retropharyngeal lnn efferents:
    Medial Retropharyngeal lnn efferents:
    • Lateral Retropharyngeal lnn efferents:
    • Medial Retropharyngeal ln
    • Cr. Deep Cervical
    • Tracheal Duct

    • Medial Retropharyngeal lnn efferents:
    • Tracheal Duct
  15. Other name for Tie Back Sx in horses
  16. For a Ventriculectomy, entry into the laryngeal ventricle is through the ____
    Cricothyroid Membrane
  17. A ventriculectomy -> wider ____
    Rima Glottis
  18. Two factors that impede intubation in horses
    • Narrow Rima Oris -> done blindly
    • The longitudinal Axis of the head and laryx are @ an angle (extend head slightly)
  19. What is a horse doing when it cribs?
    • Flexes the neck
    • Tenses the caudo-ventral hyoid & sternocephalic mm
    • Pharynx Dilates
  20. Elimination of cribbing involves the resection of:
    • Omohyoid m
    • Sternocephalic m
    • Sternothyroid m
  21. 1st & 2nd most common sites for facial nerve damage
    • 1st: Over the caudal border of the mandible
    • 2nd: Where the buccal branches run over the masseter m
  22. When is Facial N paralysis more noticeable?
    When it is unilateral
  23. Damage to the facial nerve => (6)
    • No buccinator m (nostril cant dilate & cheeks bludge)
    • No obicularis m (no blink)
    • Eyelid cannot close
    • Lower lid droops
    • Ear hangs and is pulled back
    • Eating/Drinking impeded (lower lip affected)
  24. What muscle is affected if...
    -Nostril cannot dilate
    -Cheeks bulge with food
    • Buccinator m
    • (Facial Nerve/buccal branch)
  25. What muscle is affected if...
    No blink reflex/Corneal Drying
    • Orbicularis m
    • (Facial n)
  26. Bilateral mandibular n paralysis =>
    Lower Jaw Drops
  27. What nerve is blocked using a Peterson block?
    Maxillary n
  28. Maxillary n Block =>
    • Anesthetization of all maxillary teeth
    • ONLY used for LAST 4 CHEEK TEETH
  29. To block the maxillary n, insert the needle...
    into the infraorbital foramen
Card Set
Anatomy E4, II, Oral Cavity/Guttural Pouch
Anatomy E4, II, Oral Cavity/Guttural Pouch