Palatines, Maxilla, Zygomatics, Vomer, Mandible, Nasal, Lacrimal, Inferior nasal conchae flashcards set (SBA4)

posterior nasal spine

pointed bony projection at the posterior end of the hard palate

pyramidal process

The posterior border of the perpendicular plate is the thickest border.

horizontal plate

forms the posterior portion of the hard palate

perpendicular plate

appressed tightly to the posteromedial wall of the maxilla opposite the maxillary sinus, between the pterygoid plates of the sphenoid and the posterior margin of the alveolar process of the maxilla.

medial border

thick and serrated, articulates with the opposite bone to form the nasal crest

alveolar process

Portion of the maxillary bones that holds the tooth roots

canine jugum

bony eminence over the maxillary canine root on the facial surface of the maxilla

zygomatic process

forms the cheekbone

infraorbital foramen

opening under the orbit carrying the infraorbital nerves and blood vessels the nasal region

nasoalveolar clivus

The sloping surface between the nasal aperature and upper teeth

frontal process

rises to articulate with the frontal, nasals, lacrimal, and ethmoid

anterior nasal spine

thin projection of bone on the midline at the inferior margin of the nasal aperture

palatine process

forms the anterior part of the palatine and floor of the nasal cavity

frontal process

rises vertically and separates the orbits from the temporal fossa

zygomaticofacial foramen

perforates the covex lateral surface of the zygomatic

maxillary process

extends toward the midline, forming the inferolateral orbital margin

masseteric origin

the roughened, expanded inferior edge of the bone, extends from the zygomaticomaxillary to the temporozygomatic suture

temporal process

extends posteriorly to join the zygomatic process of the temporal bone

Alae (wings)

either side of a deep midline furrow on the superior surface of the vomer. This part of the bone is the thickest and sturdiest and is tightly appressed to the sphenoid

perpendicular plate

the vomer is a thin verticle sheet of bone on the midline below the Alae

posterior border

nonarticular part of the vomer that divides the posterior nasal aperture into two halves

mental spines

are small ridges on the inner surface of the mandible; serve for attachment of certain chin muscles

mylohyoid groove

crosses the medial surface of the ramus, running anteroinferiorly from the edge of the mandibular foramen

Body

the thick, bony part of the mandible that anchors the teeth

mental eminence

the triangular eminence, or bony chin, at the base of the corpus in the anterior symphyseal region

mental foramen

the large, sometimes multiple foramen located on the lateral corpus surface, near mid-corpus, below the premolar region

oblique line

a weak eminence that passes from the root of the ramus to the area at the rear of the mental foramen

ramus

this vertical part of the mandible rises above the level of the teeth and articulates with the cranial base

mandibular condyle

the large, rounded, articular prominance on the posterosuperior corner of the ramus

condylar neck

the area just anterioinferior to the condyle

coronoid process

the ramus is thin and triangular, varying widely in shape

mandibular notch

the notch between the condule and the coronoid process

gonial angle

rounded posteroinferior corner of the mandible

nasal foramen

perforates the facial surface and transmits a vein

posterior lacrimal crest

vertical crest on the medial orbital wall that bounds the posterior half of the lacrimal groove

lacrimal groove

forms the posterior portion of the superior end of the lacrimal canal

Lamina

a thin, vertical, undulating sheet of bone extending medially and inferiorly from the maxillary process

maxillary process

the delecate hook of the bone extending toward the medial surface of the maxilla

ethmoid process

the inferior concha is just posterior to the lacrimal process