Small rounded projection or process epicondyle raised

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Small rounded projection or process Epicondyle Raised area on or above a condyle Spine Sharp, slender, often pointed projection Process Any bony prominence Projections That Help To Form Joints Head Bony expansion carried on a narrow neck Facet Smooth, nearly flat articular surface Condyle Rounded articular projection Ramus Armlike bar of bone Depressions and Openings (For Passage of Blood Vessels and Nerves) Groove Furrow Fissure Narrow, slitlike opening Foramen Round or oval opening through a bone Notch Indentation at the edge of a structure Depressions and Openings (Others) Meatus Canal-like passageway Sinus Cavity within a bone, filled with air and lined with mucous membrane Fossa Shallow, basinlike depression in a bone, often serving as an articular surface The Skull Vault: superior, lateral and posterior aspects + forehead Base: inferior aspect -3 distinct fossae on cranial base: anterior, middle, posterior Cranium -surrounds and protects brain -bones are self bracing bc curved (thin but strong) Frontal Bone: dome-shaped, forms roof of orbits and anterior cranial fossa -supraorbital margin, supraorbital foramen, glabella -frontal sinuses Parietal Bones: bulk of cranial vault Occipital Bone: base of skull, walls of postcranial fossa -Foramen Magnum: large hole at base for spinal cord passage -Occipital Condlyes: articulate with C1 -External Occipital Protuberance: projection at back of skull Temporal Bones: 3 areas/regions -Squamous Region: flattened, zygomatic bone and mandibular fossa -Tympanic Region: surrounds external acoustic meatus -Petrous Region: internal aspect that contributes to cranial base and houses ear cavities, mastoid process Sphenoid Bone: articulates with all other cranial bones, base of MCF + ACF, contains sphenoid sinuses -Greater and Lesser Wings: orbits, MCF, ACF -Pterygoid Processes: attach chewing muscles -Optic Foramina: for optic nerves Ethmoid Bone: cube deep between orbits and nasal cavities -Cririform Plate: roof of nasal cavity + floor of ACF -Olfactory Foramina: tiny holes transmitting olfactory nerves
-Perpendicular Plate: projects inferiorly (nasal septum) -Crista Galli: projects superiorly to attach to dura mater of brain Cranial Sutures Coronal Suture: 2 parietal + frontal Squamous Suture: parietal + temporal Lambdoid Suture: 2 parietal + occipital Sagittal Suture: parietal + parietal Sutural Bones: tiny irregular bones can occur w/in cranial suture Facial Bones -framework, contain cavities for sensory organs, provide openings for air/food, secure teeth, and anchor facial muscles Mandible: lower jaw, strongest + largest facial bone -Mandibular Notch: -Coronoid Process: insertion of temporalis muscle -Mandibular Condyle: -Alveolar Margin: contains tooth sockets -Mandibular Foramina: nerves to teeth in lower jaw -Mental Foramina: blood vessels + nerves to chin + lower lip Maxillary Bones: fused medially, has maxillary sinus (these are the ones that get infected) -Alveolar Margins: hold teeth -Palatine Processes: form hard palate -Frontal and Zygomatic Processes: Zygomatic Bones:

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