Restorative 1 Flashcards
front, side and crown (top of head)
Oval from three views
is the bony ridge found on the inferior surface of the maxilla and the superior surface of the mandible which contains the sockets of the teeth.
alveolar process
The bones of the skull are held in position by
sutures
the only movable bone in the skull (which is held in position by muscles and tendons).
special note: the mandible
In osteology, the bones of the skull are divided into two categories
1) bones of the cranium
(2) bones of the face
Occipital, Temporal, Parietal, Frontal
bones of the cranium
Parietal
top and sides of the skull.
Temporal
inferior to the parietal bones.
Frontal
makes up the forehead.
Occipital
the rocking chair of the brain. It holds the brain
Nasal bones, Zygomatic bones, Maxilla bones, Mandible bone
bones of the face
only moveable bone of the face
Mandible bone
13 surface bones of the skull
6 cranium bones + 7 facial bones
forms the inferior portion of back and base of skull, this also serves as the rocking chair for the brain
Occipital bone location
large opening which permits entry of the spinal cord into the cranial vault.
Foramen magnum
the parietal bones form the posterior 2/3 of the top and the superior portion of the sides.
Parietal bone location
located superior to the posterior border of the ears.
Parietal eminences
Parietal eminences are used to measure
the widest portion of the cranium.
is formed at the junction of the two parietal bones, along this suture line will be the (vertex of the cranium) highest point of the cranium.
Sagittal suture
The temporal bones create the inferior portion of the sides of the cranium, they also lie inferior to the parietal bone and anterior to the occipital bone.
Temporal bone location
is the vertical portion of the temporal bone with a concave surface forming the temporal cavity
Squama
the area that most commonly needs hypodermic tissue building.
Cavity
the opening of the ear passage, it is the primary structure for the acute location of a modeled ear.
External auditory meatus
a thin long arched process which arises from the skull directly above the ear passage and then extends anteriorly
Zygomatic arch
The zygomatic arch is part of the
temporal bone
The portion of the zygomatic arch immediately anterior to the external auditory meatus is used to measure
the widest part of the face.
The zygomatic arch is also used to correctly position the modeled ear. The arch is located
superior and anterior to the external auditory meatus
a projection located posterior and inferior to the external auditory meatus (hole in ear).
Mastoid process
serves as the insertion of the sternocleidomastoid muscle.
Mastoid process
The muscle is used to measure the widest portion of the neck.
Mastoid process
forms the forehead, and (the top 1/3 of the cranium).
Frontal bone location
the forehead
Vertical surface
the crown
Horizontal surface