Anatomy, E4, III Equine Head

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Anatomy, E4, III Equine Head
2011-03-31 22:35:19

Anatomy, E4, III Equine Head
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  1. The roof of the Cranium is formed by.... Rostrally by...
    • Roof:
    • Occipital(majority)
    • Parietal
    • Interparietal
    • Rostrally:
    • Frontal Bones
  2. The ____ forms the most caudal part of the skull, and projects dorsally to form the ____
    • Occipital Bone
    • Nuchal Crest
  3. Lateral, prominent ridge of the skull that is a major landmark
    Facial Crest
  4. the internal cranial cavity is divided into two parts, which contain...
    • Large Rostral Part- cerebrum
    • Smaller Caudal Part- Cerebellum
  5. The two parts of the internal cranial cavity are separated dorsally by the _____*
    Tentorium Cerebelli Osseum
  6. Blind cutaneous pouch in the nostril?*
    False Nostril
  7. The False Nostril extends rostro-caudally from the ___ to the ___*
    • Dorsal angle of the nostril
    • Nasoincisive notch
  8. The Alar Cartilage is comprised of: *
    • Lamina (broad/flat)
    • Cornu/Horn
  9. To reduce weight, bones of the skull are...*
  10. What contributes to the reduced size of the nasal cavities?
    • Roots/Crown of cheek teeth
    • Nasal and Ethmoid Conchae
    • Mucosa is thick and highly vascularized
  11. How many nasal conchae? Meatuses?
    • 3
    • 4
  12. Nasal Conchae:
    • Dorsal
    • Middle
    • Ventral
  13. Nasal Meatuses:
    • Dorsal
    • Middle
    • Ventral
    • Common
  14. For Stomach intubation, the tube is passed through...
    • (place finger above tube)
  15. What are paranasal sinuses?
    Air Spaces in bones, lined by mucous membrane
  16. What innervates the paranasal sinuses and nasal mucosa?
    • Opthalmic
    • Maxillary
  17. What is clinically important d/t infection?
    Paranasal sinuses
  18. The last 3-4 cheek teeth project into
    • Maxillary Sinus
    • (avenue for extraction)
  19. The frontal sinus in connected to the dorsal turbinate bone via the
    Conchofrontal Sinus
  20. Compared to other species, the equine frontal sinus...
    extends more rostrally (d/t the turbinate part of frontal sinus)
  21. The ______ had a single cavity which is incompletely separated into compartments by bony lamellae
    conchofrontal sinus
  22. The composite sinus =
    conchofrontal sinus
  23. The oval Frontomaxiallary opening connects ____ to ____
    • Frontal sinus
    • Caudal Maxillary Sinus
  24. What allows the frontal sinus to INDIRECTLY drain into the nasal cavity?
    • Nasomaxillary Opening
    • (no direct communication)
  25. Surgical Limits of the Frontal Sinus:
    • Medial Angle of the Eye/Rostral end of facial Crest - Middle of the zygomatic Arch
    • and
    • median plan - level of the Supraorbital Foramen
  26. Parts of the Maxillary Sinus:
    • Rostral
    • Caudal
  27. What separates the the rostral and caudal maxillary sinuses?
    Oblique Septum
  28. Communication btw the Maxillary Sinuses?
  29. The Caudal 1/2 of the ventral turbinate is incorporated into the...
    Rostral Maxillary Sinus
  30. The Rostral Maxillary Sinus in divided into two compartments:
    • Lateral
    • Medial turbinate Compartment
  31. Do the Lateral and Medial Maxillary Sinuses communicate?
  32. The Cranial and Caudal Sinuses are separated by a...
    Complete Bony Septum
  33. The Cranial and Caudal Sinuses open into the nasal cavity via...*
    Nasomaxillary Opening
  34. Inflammation of mucosa blocks the...
    nasomaxillary opening
  35. The caudal half of the ventral turbinate is incorporated into the....
    rostral maxillary sinus
  36. Where is the infraorbital canal located?
    In the ventral portions of the of the rostral and caudal maxillary sinuses (-> lateral medial portions)
  37. The ______ connects the Frontal and Caudal Maxillary sinuses
    Frontomaxillary Sinus
  38. Which maxillary sinus is larger?