Canine Skull Flashcards
List 3 functions of the skull
- muscle attachment
- organ protection (cavities)
- Respiratory and olfactory
- provide long surfaces for teeth implantation
The cranium is divided into _____________ and ______________.
- neurocranium
- viscerocranium
Which part of the cranium is the brains case?
Neurocranium
Splanchnocranium is another name for the ?
Viscerocranium
List the types of joints present in the skull
- sutures
- gomphoses
- temporomandibular
- mandibular symphysis
Describe the movement of the joints of the skull
Akinetic
What is the name of the chain of bones that connect the larynx to the bone?
Hyoid apparatus
List the 5 parts of the skull
- cranium
- mandible
- joints
- cavities/foramina
- hyoid apparatus
What are the 3 intraspecific differences in skull shape?
- Brachycephalic
- mesocephalic
- Dolicocephalic
Interspecific proportions of the skull will be between (breeds/species)? What do they reflect?
Species to reflect lifestyle differences
The roof of the skull is named:
Calvarium
The frontal, parietal and occipital bones make up which part of the neurocranium?
Calvarium
Which part of the cranium houses the cranial cavity, the middle ear cavity, and the frontal paranasal sinus?
Neurocranium
The neurocranium is divided into ____________, _____________, and _____________.
Calvarium
Base
Side
List the 3 things that make up the sphenoid complex of the base of the neurocranium
- Basisphenoid
- Presphenoid
- Pterygoid
The temporal bone makes up what part of the neurocranium?
Side
What forms the walls of the nasal, paranasal and oral cavities?
Viscerocranium
List the 7 things that make up the viscerocranium:
Nasal
Lacrimal
Zygomatic
Maxilla
Incisive
Palatine
Vomer
Ethmoid
What is the skeleton of the lower jaw?
Mandible
What makes up the mandible?
Body and ramus
What is the symphysis in the mandible called?
Intermandibular articulation
Which joint is housed in the mandible?
Temporomandibular joint
How many nasals cavities are there?
2: left and right
List three cranial fossae
- Rostral
- Middle
- Caudal
What is the main entrance to the nasal cavity?
Nasal aperture
Another name for the turbinate bones?
Conchae
What separates the oral cavity from the nasal cavity?
hard palate
What is the function of the conchae?
Cleanse, warm, filter air
Another name for the Ethiod bone:
Osseus septum
Describe the conchae
Bony scrolls that extend medially into the nasal fossa covered by mucosa
List the 3 conchae
- dorsal
- ventral
- ethmoidal labyrinth
Which conchae has olfactory mucosa?
Dorsal nasal concha
Which conchae has respiratory mucosa?
Ventral nasal concha
What are the nasal meatuses?
Spaces made from where the conchae divide the nasal cavity into 4 passages
List the 4 nasal meatuses
- Dorsal
- middle
- ventral
- common
Which meatus connects the other; between nasal septum and the meatuses?
Common meatus
Which meatus does an NG tube go through?
Ventral meatus
What goes through the paranasal sinuses?
Olfactory n
What are the 2 paranasal sinuses?
- Frontal
- maxillary recess
What is the clinical significance of the maxillary recess?
Its association with teeth and a tooth abscess
List the 5 foramina of the skull
- optic canal
- orbital fissure
- rostral alar foramen
- caudal alar foramen
- oval foramen
What is the name of the fossa that the foramina are in?
Pterygopalatine fossa
Which foramina connect to the brain cavity directly?
Optic canal, orbital fissure and oval foramen
Which nerve come out of foramina optic canal 1 and orbital fissure 2?
1- optic nerve
2- oculomotor n
Cranial nerves!
1- olfactory
2- optic
3- oculomotor
4- trochlear
5- Trigeminal (V1-ophthalmic)
6- Abducens
7- facial
8- Vestibulocochlear
9- Glossopharyngeal
10- Vagus
11 - Accessory
12 - Hypoglossal
Which CN are associated with the eye?
2-6
Where does the maxillary artery go through?
Alar canal
