RA BONES
what bone is shaped like a horseshoe?
body of the mandible
name the superior surface of the ethmiod bone
cribriform plate
name the opening in the occipital bone that allows entry of the spinal cord.
foramen magnum
describe the frontal bone
forms the fore head and the anterior portion of the root of the skull.
what are the rounded unimagined prominences at the upper part of the forehead?
frontal eminences.
what structure creates the hinge for the lower jaw?
mandibular fossa
what bone articulates at the medial line just below the nasal cavity?
maxilla
Describe the crista gali
means crest of the cock; or roosters comb. top portion of the ethmoid bone.
what landmark is located on the midline of the mandible?
mental eminences
what bones are directly inferior to the glabella?
nasal bones
what bone is the lowest part of the back and base of the skull?
occipital
what is the eminence found on the occipital bone?
occipital protuberance
how many bones of the face are in pairs?
6
how many bones of the cranium are in pairs?
4
how many bones are in the face?
14
how many bones are in the skull?
22
how many bones are in the cranium?
8
what do we call the sockets for the teeth?
alveolar process
describe the angle of the jaw
area where the body of the mandible and each ramus unite at nearly right angles.
what process of the ramus rests in the mandibular fossa?
condyle of the ramus
name the suture between the parietal bones and the frontal bone.
coronal
name the boundaries (sutures) of the parietal articulation.
coronal suture, squamosal suture, lamboidal suture.
name the bone that comes from the lation word "sieve"
ethmoid bone
what is the proper name for the opening of the ear passage?
external auditort meatus.
name the structure that is responsible for recession of the central plane of the lower lip.
incisive fossa
name the bony ridge or ledge on the lateral wall of the nasal cavity
inferior nasal conchae
name the bone that comes from the Latin word "tears"
lacrimal
what is the suture between the parietal and occipital bones?
lambdoidal
what part of the sphenoid bone might be describes as resembling a pair of horns?
lesser wing.
what bone refers to the roof of the mouth?
palatine bones
what two bones create the greater part of the skull?
parietal bones
the widest part of the cranium is measured between what boney landmarks?
parietal eminences
what part of the ethmoid bone extends into the nasal cavity?
perpendicular plate
what is the perpendicular structure on each side of the mandible?
ramus of the mandible
name the suture between the two parietal bones
saggital
name the formation on the sphenoid bone that cradles the pituitary gland.
sella turcica
Describe the glabella
small smooth elevation which lies between the superciliary arches. its the eminence just above the root of the nose
name the bone that is shaped like a bat or a butterfly.
sphenoid bone
what boney landmark lies above the medial ends of the eyebrows?
superciliary arches
name the upper rim of the eye socket
supraorbital margins
what pair of bones creates the lower portion of the sides and base of the cranium?
temporal bones
describe the zygomatic bone
the cheek bone; curvature in convex; exist in both frontal and lateral planes of the face; creates the prominence of the cheek and forms the major portions of the inferior and lateral margins of the eye-socket; greatest width of the anterior plane of the face.
where is the squama located?
vertical portion of the temporal bones
name the bone that takes its name from the latin name "plowshare"
vomer
describe the nasal spine
where the two maxilla bones join at the inferior margin f the nasal cavity.
what structure is used to establish the widest part of the face?
zygomatic arch
name the four suture used to establish the correct position of the ear.
zygomatic arch, mandibular fosa, mastoid process, external auditory canal.
what structure forms the lateral and lower rim of the eye socket?
zygomaticofrontal process
