A | B |
Coronal suture | jJoins frontal & parietal |
Sagittal suture | Joins parietal bones at top of skull |
Squamous suture | Joins parietal & temporal bones |
Lambdoidal suture | Joins occipital & parietal bones |
Temporozygomatic suture | Joins temporal & zygomatic bones |
Median palatine suture | Joins palatine bones to each other & joins palatal processes of maxillae to each other |
Transverse palatine suture | Join palatal processes of maxillae to palatine bones |
Bregma | Intersection between coronal & sagittal sutures |
Lambda | Intersection between sagittal & lambdoidal sutures |
Pterion | Frontal, parietal, temporal , & greater wing of the sphenoid bone meet here |
Glabella | fFattened area between eyebrows |
Frontal eminence | Prominence of forehead |
Supraorbital ridge | Ridge superior to orbit |
Supraorbital foramen | Opening superior to orbit |
Zygomatic process of frontal bone | Lateral portion that touches zygomatic bone |
Cribriform plate of ethmoid | Anterior horizontal plate perforated for olfactory nerves |
Crista galli | Anterior projection - attachment for meninges |
Ethmoid sinuses | Air spaces within ethmoid bone |
Orbital plate of ethmoid | Forms medial wall of orbit |
Perpendicular plate of ethmoid | Forms part of nasal septum |
Superior nasal conchae | Superior scroll-shaped processes of ethmoid bone within nasal cavity |
Middle nasal conchae | Middle scroll-shaped processes of thmoid bone within nasal cavity |
Pterygoid Process of sphenoid | Process inferior to greater wings & consists of lateral & medial pterygoid plates |
Lateral pterygoid plate | Attachment area for lateral pterygoid muscle |
Medial pterygoid plate | Attachment area for medial pterygoid muscle |
Pterygoid hamulus | Attachment for tensor veli palatini muscle |
Body of sphenoid bone | Middle of the bone - touches ethmoid bone anteriorly & occipital bone posteriorly |
Sphenoid sinuses | Air spaces within middle of sphenoid bone |
Greater wings of sphenoid | Posterior, lateral & inferior portion |
Lesser wings of sphenoid | Anterior superior portion |
Parietal bones | Form superior lateral skull walls |
Three parts of temporal bone | Squamous, petrous, & tympanic |
Articular fossa | Part of TMJ |
Articular emminence | Bulge of bone anterior to articular fossa |
Postglenoid process | Small bulge of bone posterior to articular fossa |
Zygomatic process of temporal bone | Forms part of zygomatic arch |
Mastoid process | Rough air filled rounded projection posterior to EAM |
Mastoid notch | Depression medial to mastoid process |
Styloid process | Long, finger-like projection medial to mastoid notch |
Stylomastoid foramen | Exit foramen for Cranial Nerve VII |
Jugular notch | Depression that along with occipital bone forms jugular foramen |
IAM | Internal acoustic meatus, inside petrous protion of temporal bone, Cranial nerves VII & VIII travel within |
EAM | External acoustic meatus, short canal to tympanic cavity |
Vomer | Forms posterior, inferior nasal septum |
Zygomatic bones | Cheek bones |
Nasal bones | Form bridge of nose |
Lacrimal bones | Form anterior medial walls of orbits |
Inferior nasal conchae | Inferior scroll-shaped bones on lateral nasal walls |
Palatine bones | Horizontal plates form posterior hard palate & vertical plates form posterior lateral walls of nasal cavity |
Greater palatine foramen | Foramen in palatine bone located near max 3rd molar palatal root apex through which greater palatine nerves & vessels pass |
Lesser palatine foramen | Foramen in palatine bone located posterior to greater palatine foramen through which greater lesser palatine nerves & vessels pass |
Maxillae | Form midface & most of hard palate |
Frontal process of maxilla | Touches frontal bone |
Zygomatic process of maxilla | Touches zygomatic bone |
Palatine processs of maxillae | Form anterior hard palate |
Alveolar process | Surrounds & supports teeth (found on both mandible & maxillae) |
Canine emminence | Ridge of bone over roots of max canines |
Canine fossa | Depression posterior & superior to max canine |
Infraorbital canal | Canal that travels in or through floor of the orbit |
Infraorbital foramen | Opening on faclal surface of maxilla inferior to orbit |
Maxillary sinus | Air spaces within maxilla |
Maxillary tuberosity | Prominent bulge/curvature of bone posterior & superior to last max molars |
Medial palatine suture | Junction of palatal processes of maxillae |
Incisive foramen | Midline opening palatal to max centrals under incisive papilla - nerves & vessels pass through |
Posterior superior alveolar foramina | small external openings on superior-posterior maxillary tuberosity - openings for nerves & vessels |
Anterior nasal spine | Anterior projection at midline meeting of maxillae - inferior to nasal cavity |
Anterior palatine foramina | 2 small openings on anterior floor of nasal cavity |
Hyoid bone | Suspended in neck - does not articulate with any other bone |
Mandible | 1 body & 2 rami |
Condyle | Posterior, superior projection of ramus of mandible- part of TMJ |
Coronoid process | Anterior, superior projection of ramus of mandible- shark fin |
Mandibular notch | Depression between condyle & coronoid process |
Coronoid notch | Notch or concavity on anterior border of ramus of mandible |
Neck of condyle | Narrow area inferior to head of condyle of mandible |
Mandibular foramen | Opening on internal surface of ramus - nerves & vessels pass through |
Lingula | Small bony projection superior to mand foramen |
Mandibular canal | Tunnel-like passage from mandibular foramen to mand teeth - nerves & vessels pass through |
Angle of mandible | Posterior border of ramus meets inferior border of body |
Symphysis of mandible | Midline of external body |
Mental foramen | Opening on external body near apices mand 2nd premolars - nerves & vessels pass through |
External oblique ridge | Ridge extending from coronoid notch onto external surface of body of mandible |
Internal oblique ridge | Ridge extending from coronoid notch onto internal surface of body of mandible |
Mylohyoid ridge | Ridge on inner surface of body of mandible - attachment for muscles |
Mylohyoid groove | Groove on internal body of mandible inferior to mylohyoid ridge |
Sublingual fossa | Depression superior to mylohoid ridge - sublingual saliva gland rests in this |
Submandibular fossa | Depression inferior to mylohoid ridge - submandibular saliva gland rests in this |
Retromolar triangle | Triangular area of bone posterior to last mand molar |
Genial tubercles | Mental spines - projections of bone anterior midline inner surface of mandible - muscle attachment |
Lingual foramen | Tiny foramen inner anterior midline of mandible |
Digastric fossae | Depressions on anterior inferior internel border near midline |