Base of Skull Flashcards
How do the bones of the hard palate come together?
Articulation is by sutures - fibrous joints
What are the parts of the palatine bone?
Premaxilla, palatine bone, horizontal plate, pyramidal process
What passes through the incisive foramen?
Incisive branch of nasopalatine nerve
What is transmitted through the greater and lesser palatine foramen?
The greater and lesser palatine vessels and nerves
What attaches to the posterior nasal spine?
Soft palate muscles
What is the maxillary tuberosity?
The rounded end of the maxillary dental arch
What attaches to the lateral pterygoid plate?
Lateral and medial pterygoid muscles
What attaches to the pterygoid hamulus?
The superior pharyngeal constrictor
What forms the groove for the auditory canal?
The cartilagenous auditory tube
What attaches to the scaphoid fossa?
Tensor veli palatine muscle (this is part of its origin)
What fills the interpterygoid fossa?
The belly of the tensor veli palatini
What is transmitted through the foramen ovale?
The mandibular division of the trigeminal nerve (V3) and the lesser petrosal nerve
What transits through the foramen spinosum?
Middle meningeal artery
What attaches to the spine of the sphenoid?
Sphenomandibular ligament
What passes through the foramen lacerum?
NOTHING! Nothing passes directly through it
What direction is the pterygoid canal, and what passes through it ?
It runs anteriorly, and it transmits the nerve of the pterygoid canal
What passes through the pharyngeal canal?
The pharyngeal branch of V2
What originates in the infratemporal surface of the sphenoid?
The superior head of the lateral pterygoid muscle
What does the vomer bone form?
The posterior part of the nasal septum
What does the vertical plate of the palatine bone form?
Part of the lateral nasal wall
What is the site of the mandibular condyle at rest?
The glenoid fossa
Where will the condyle rest when it is translating?
Against the articular eminence
What is the attachment site of the lateral ligament of the TMJ?
The articular tubercle
What attaches to the petrotympanic fissure posteriorly?
The capsule of the TMJ
What does the postglenoid tubercle do?
It limits retrusion of the mandibular condyle
What is the anterior wall of the external acoustic meatus?
The tympanic plate
What is the function of the tympanic plate?
It limits retrusion in the TMJ
What attaches to the styloid process?
2 ligaments
3 muscles
The stylohyoid ligament, stylomandibular ligament, styloglossus, stylohyoid, and stylopharyngeus muscles
Where is the carotid canal, and what passes through it?
The carotid canal is contained in the temporal bone, and the internal carotid artery passes into it
Where is the jugular foramen located?
Between the temporal and occipital bones
What will the occipital condyles articulate with?
The first cervical vertebra, the atlas
What is transmitted through the hypoglossal canal?
The hypoglossal nerve - cranial nerve XII
What is the basiocciput?
The anterior midline section of the occipital bone
What is the pharyngeal tubercal a part of?
Part of the attachment for the superior pharyngeal constrictor muscle
What is the condylar canal for?
It is for a communicating vein called the emissary vein
