Facial & Cranial Bones (Study Guide)

Frontal Bone
Frontal Bone
the large cranial bone forming the front part of the cranium: the forehead and the upper part of the orbits

Parietal Bone
Parietal Bone
either of two skull bones between the frontal and occipital bones and forming the top and sides of the cranium (Posterior view of the skull)

Temporal Bone
Temporal Bone
bone that forms parts of the side of the skull and floor of the cranial activity. There is a right and left temporal bone.

Mastoid Process
Mastoid Process
projection of the temporal bone located behind the ear

Styloid Process
Styloid Process
spike-like process extending downward from the temporal bone on each side of the skull

Supraorbital foramen
Supraorbital foramen
bony elongated path located above the orbit (eye socket) and under the forehead. The supraorbital foramen lies directly under the eyebrow

Sagital Suture
Sagital Suture
Located on the mid-line of the skull lies between both parietal bones (immovable joint)

Coronal Suture
Coronal Suture
the suture between the parietal and frontal bones of the skull

Lambdoidal Suture
Lambdoidal Suture
suture that separates parietal bones from occipital bone

Squamosal Suture
Squamosal Suture
between parietal bone and temporal bone on side of the skull, bordered in back by occipital bone

Optic Foramen
Optic Foramen
On either side ochiasmatic groove -transmits optic nerve (CN II) along with its meningeal coverings, and the ophthalmic artery

External Auditory Meatus
External Auditory Meatus
hole in the temporal bone extending medially to the inner ear

Jugular Foramen
Jugular Foramen
CN IX, X, XI, superior bulb of internal jugular, inferior petrosal and sigmoid sunuses, meningeal branches of ascending pharyngeal and occipital arteries pass through

Madibular fossa
Madibular fossa
depressions where manidble and cranium meet and join

Temporomandibular joint (TMJ)
Temporomandibular joint (TMJ)
the joint between the head of the lower jawbone and the temporal bone

Occipital Bone
Occipital Bone
a saucer-shaped membrane bone that forms the back of the skull

Foramen Magnum
Foramen Magnum
the large opening at the base of the cranium through which the spinal cord passes

Occipital Condyle
Occipital Condyle
ridges on left and right of foramen magnum

Middle nasal Concha
Middle nasal Concha
the middle thin, spongy, bony plate with curved margins, part of the ethmoidal labyrinth, projecting from the lateral wall of the nasal cavity and separating the superior meatus from the middle meatus;

Crista Galli
Crista Galli
vertical projection providing a point of attachment for the dura mater, helping to secure the brain within the skull

Cribiform plate
Cribiform plate
superior surface of the ethmoid; perforated by a foramina which allows passage of the olfactory nerves, which provide sense of smell

Maxilla
Maxilla
Forms most of the upper jaw, and part of the hard palate, contains upper molars, premolars, and canines

Palatine Process
Palatine Process
forms the anterior portion of the hard palate (roof) of the mouth also forms parts of the nasal cavity and eye orbits

Alveolar Process
Alveolar Process
a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth

Lacrimal Bone
Lacrimal Bone
small fragile bone making up part of the front inner walls of each eye socket and providing room for the passage of the lacrimal ducts

Lacrimal Fossa
Lacrimal Fossa
Anterior and lateral depression of roof of orbit which accommodates the lacrimal gland

Nasal Bone
Nasal Bone
an elongated rectangular bone that forms the bridge of the nose

Palatine Bone
Palatine Bone
either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbits

Inferior nasal Concha
Inferior nasal Concha
located on each side of the nasal septum, attached to the lateral wall of the nasal cavity; increase epithelial surface area and create turbulence in the inspired air

Vomer
Vomer
thin trapezoidal bone of the skull forming the posterior and inferior parts of the nasal septum

Zygomatic Bone
Zygomatic Bone
the arch of bone beneath the eye that forms the prominence of the cheek

Mandible
Mandible
the lower jawbone in vertebrates

Condylar Process
Condylar Process
the condyle of the ramus of the mandible that articulates with the skull

Aveolar Process
Aveolar Process
bone surronding the teeth

Hyoid Bone
Hyoid Bone
bone that is suspended in the mid neck region and provides a moveable base for the tongue

Mental Foramen
Mental Foramen
the anterior opening of the mandibular canal on the body of the mandible lateral to and above the mental tubercle giving passage to the mental artery and nerve.

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