Facial & Cranial Bones (Study Guide) – Flashcards
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Frontal Bone
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the large cranial bone forming the front part of the cranium: the forehead and the upper part of the orbits
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Parietal Bone
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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)
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Temporal Bone
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bone that forms parts of the side of the skull and floor of the cranial activity. There is a right and left temporal bone.
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Mastoid Process
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projection of the temporal bone located behind the ear
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Styloid Process
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spike-like process extending downward from the temporal bone on each side of the skull
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Supraorbital foramen
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bony elongated path located above the orbit (eye socket) and under the forehead. The supraorbital foramen lies directly under the eyebrow
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Sagital Suture
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Located on the mid-line of the skull lies between both parietal bones (immovable joint)
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Coronal Suture
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the suture between the parietal and frontal bones of the skull
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Lambdoidal Suture
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suture that separates parietal bones from occipital bone
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Squamosal Suture
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between parietal bone and temporal bone on side of the skull, bordered in back by occipital bone
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Optic Foramen
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On either side ochiasmatic groove -transmits optic nerve (CN II) along with its meningeal coverings, and the ophthalmic artery
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External Auditory Meatus
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hole in the temporal bone extending medially to the inner ear
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Jugular Foramen
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CN IX, X, XI, superior bulb of internal jugular, inferior petrosal and sigmoid sunuses, meningeal branches of ascending pharyngeal and occipital arteries pass through
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Madibular fossa
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depressions where manidble and cranium meet and join
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Temporomandibular joint (TMJ)
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the joint between the head of the lower jawbone and the temporal bone
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Occipital Bone
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a saucer-shaped membrane bone that forms the back of the skull
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Foramen Magnum
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the large opening at the base of the cranium through which the spinal cord passes
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Occipital Condyle
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ridges on left and right of foramen magnum
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Middle nasal Concha
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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;
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Crista Galli
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vertical projection providing a point of attachment for the dura mater, helping to secure the brain within the skull
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Cribiform plate
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superior surface of the ethmoid; perforated by a foramina which allows passage of the olfactory nerves, which provide sense of smell
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Maxilla
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Forms most of the upper jaw, and part of the hard palate, contains upper molars, premolars, and canines
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Palatine Process
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forms the anterior portion of the hard palate (roof) of the mouth also forms parts of the nasal cavity and eye orbits
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Alveolar Process
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a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth
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Lacrimal Bone
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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
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Lacrimal Fossa
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Anterior and lateral depression of roof of orbit which accommodates the lacrimal gland
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Nasal Bone
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an elongated rectangular bone that forms the bridge of the nose
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Palatine Bone
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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
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Inferior nasal Concha
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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
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Vomer
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thin trapezoidal bone of the skull forming the posterior and inferior parts of the nasal septum
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Zygomatic Bone
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the arch of bone beneath the eye that forms the prominence of the cheek
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Mandible
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the lower jawbone in vertebrates
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Condylar Process
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the condyle of the ramus of the mandible that articulates with the skull
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Aveolar Process
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bone surronding the teeth
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Hyoid Bone
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bone that is suspended in the mid neck region and provides a moveable base for the tongue
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Mental Foramen
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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.
