the Skull II Flashcards
the parameters of the base of the skull are?
from the middle incisure teeth to the superior nuchal line, laterally to the mastoid processes and the zygomatic arches
the base of the skull is divided into 3 parts name them and their components?
anterior part: teeth and hard palate. Middle part: behind the hard palate to the anterior margin foramen magnum. Posterior part: anterior edge of foramen magnum to superior nuchal line
the hard palate is made of?
the palatine processes of the maxillae and the horizontal plates of palatine bones
the sutures in the anterior part of the skull base are?
Intermaxillary sutures,
Palato maxillary suture,
Interpalatine suture
name the foramina of the anterior part of the base of the skull
alveolar processes, incisive foramina, greater / lesser palatine fossa, posterior nasal spine
name the structures seen on the outside of the palatine bone
orbital process, sphenopalatine notch, perpendicular plate, sphenoidal process, horizontal plate and the nasal crest
name the structures on the inside of the palatine bone
orbital process, vertical plate, maxillary process, horizontal plate
the middle part of the skull base is divided into?
Divided into anterior half (vomer and sphenoid) and posterior half (occipital and temporal bones)
the vomer bone articulates with what other bones?
the sphenoid, ethmoid, an it has a perpendicular portion
detail the sphenoid bone from above
the central sella turcica, dorsum sellae, tuberculum sellae, optic groove, anterior clinoid process, lesser wing, greater wing, sphenoidal spine, posterior clinoid process, foramen ovale, foramen spinosum, foramen rotundum, superior orbital fissure, optic canal
from the anterior view of the sphenoid bone we can see?
superior orbital fissure, greater wing, foramen rotundum, lateral plate, medial plate, pterygoid process, pterygoid canal, sphenoidal sinus, lesser wing, orbital surface of greater wing
what is the pharyngeal raphe?
is a groove/ridge that serves as the origin and insertion of several of the pharyngeal constrictors
the posterior half of the middle part is made of?
the basilar part of the occipital bone and the pharyngeal tubercle and the petrous part of the petromastoid part of the temporal bone
detail the components of the temporal bone on the outer surface
parietal margin, squamous part, sphenoid margin, zygomatic process, articular tubercle, articular surface of mandibular fossa, petrotympanic fissure, vaginal process of the styloid, styloid process, external acoustic meatus, tympanic part, mastoid process, mastoid notch, tympanomastoid fissure, occipital margin, mastoid foramen, suprameatal spine, parietal notch, supramastoid crest, suprameatal foveola, sulcus fo the middle temporal artery
detail the structures on the inner surface of the temporal bone
arcuate eminence, sup. mergin, mastoid foramen, sulcus for sigmoid sinus, ext. aperture of the aqueduct of the vestibule, intrajugular process, styloid process, aperature of int. acoustic meatus, apes of petrous part, subarcute fossa, arterial sulcus
