-
The roof of the Cranium is formed by.... Rostrally by...
- Roof:
- Occipital(majority)
- Parietal
- Interparietal
- Rostrally:
- Frontal Bones
-
The ____ forms the most caudal part of the skull, and projects dorsally to form the ____
- Occipital Bone
- Nuchal Crest
-
Lateral, prominent ridge of the skull that is a major landmark
Facial Crest
-
the internal cranial cavity is divided into two parts, which contain...
- Large Rostral Part- cerebrum
- Smaller Caudal Part- Cerebellum
-
The two parts of the internal cranial cavity are separated dorsally by the _____*
Tentorium Cerebelli Osseum
-
Blind cutaneous pouch in the nostril?*
False Nostril
-
The False Nostril extends rostro-caudally from the ___ to the ___*
- Dorsal angle of the nostril
- Nasoincisive notch
-
The Alar Cartilage is comprised of: *
- Lamina (broad/flat)
- Cornu/Horn
-
To reduce weight, bones of the skull are...*
pneumoatized
-
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
-
How many nasal conchae? Meatuses?
-
-
Nasal Meatuses:
- Dorsal
- Middle
- Ventral
- Common
-
For Stomach intubation, the tube is passed through...
- thh VENTRAL MEATUS
- (place finger above tube)
-
What are paranasal sinuses?
Air Spaces in bones, lined by mucous membrane
-
What innervates the paranasal sinuses and nasal mucosa?
-
What is clinically important d/t infection?
Paranasal sinuses
-
The last 3-4 cheek teeth project into
- Maxillary Sinus
- (avenue for extraction)
-
The frontal sinus in connected to the dorsal turbinate bone via the
Conchofrontal Sinus
-
Compared to other species, the equine frontal sinus...
extends more rostrally (d/t the turbinate part of frontal sinus)
-
The ______ had a single cavity which is incompletely separated into compartments by bony lamellae
conchofrontal sinus
-
The composite sinus =
conchofrontal sinus
-
The oval Frontomaxiallary opening connects ____ to ____
- Frontal sinus
- Caudal Maxillary Sinus
-
What allows the frontal sinus to INDIRECTLY drain into the nasal cavity?
- Nasomaxillary Opening
- (no direct communication)
-
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
-
Parts of the Maxillary Sinus:
-
What separates the the rostral and caudal maxillary sinuses?
Oblique Septum
-
Communication btw the Maxillary Sinuses?
NO
-
The Caudal 1/2 of the ventral turbinate is incorporated into the...
Rostral Maxillary Sinus
-
The Rostral Maxillary Sinus in divided into two compartments:
- Lateral
- Medial turbinate Compartment
-
Do the Lateral and Medial Maxillary Sinuses communicate?
Yes
-
The Cranial and Caudal Sinuses are separated by a...
Complete Bony Septum
-
The Cranial and Caudal Sinuses open into the nasal cavity via...*
Nasomaxillary Opening
-
Inflammation of mucosa blocks the...
nasomaxillary opening
-
The caudal half of the ventral turbinate is incorporated into the....
rostral maxillary sinus
-
Where is the infraorbital canal located?
In the ventral portions of the of the rostral and caudal maxillary sinuses (-> lateral medial portions)
-
The ______ connects the Frontal and Caudal Maxillary sinuses
Frontomaxillary Sinus
-
Which maxillary sinus is larger?
Caudal
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