Bony Landmarks Unit III Flashcards
Mental foramen
function- transmits the mental n., a. & v
Incisive fossa
attachment- mentalis m
Digastric fossa
attachment- anterior digastric m.
Alveolar part
function- houses roots of teeth, attachment- buccinator m.
Mylohyoid line
attachment- mylohyoid m.
Submandibular fossa
function- houses the submandibular gland
Sublingual fossa
function- houses the sublingual gland
Superior genial tubercle
attachment- genioglossus m.
Inferior genial tubercle
attachment- geniohyoid m.
Mylohyoid groove
function- houses mylohyoid n.
External surface - Body of mandible
attachment - depressor anguli oris and platysma m.
Mandibular ramus
attachment- masseter
Angle of mandible
attachment- masseter & medial pterygoid m.
Mandibular foramen
function- transmits the inferior alveolar n., a. & v
Mandibular canal
function- houses the inferior alveolar n. , a. & v. within the ramus and the body of mandible
Lingula
attachment- sphenomandibular l.
Temporal crest
attachment- temproalis m.
Anterior border of mandible
attachment- temporalis
Oblique line
attachment- depressor labii inferioris
Coronoid process
attachment- temporalis m.
Mandibular (sigmoid) notch
function- transmits the nerve & artery to the masseter m.
Pterygoid fovea
attachment- lateral pterygoid m.
Body of hyoid bone
attachment- geniohyoid, genioglossus, hyoglossus, mylohyoid, sternohyoid, omohyoid & thyrohyoid
Greater cornu
attachment- middle constrictor, hyoglossus & stylohyoid m., & intermediate tendon of diagrastric m.
Lesser cornu
attachment- middle constrictor & stylohyoid lig.
External occipital protuberence
attachment- ligamentum nuchae
Superior nuchal line
attachment- occipitalis, trapezius, sternocleidomastoid, semispinalis capitis & splenius capitis m.
Inferior nuchal line
attachment- rectus capitis posterior major & minor & semispinalis capitis m
Internal occipital protuberence
attachment- falx cerebelli
Superior sagittal sulcus
function- houses superior sagittal sinus
Sulcus for transverse sinus
function- houses the transverse sinus
Sulcus for the sigmoid sinus
function- houses the tsigmoid sinus
Foramen magnum
function- transmits the spinal cord, vertebral a. & v., & accessory nerve
Pharyngeal tubercle
attachments- pharyngeal raphe
Occipital condyles
function- articulates with atlas
Hypoglossal canal
function- transmits hypoglossal n
Jugular notch & foramen
function- transmits the internal jugular v., glossopharyngeal n., vagus n. & accessory n.
Sulcus chiasmatis
function- houses the optic chiasm
Optic canal
function- transmits the optic n. & ophthalmic a
Hypophyseal fossa
function- houses the pituitary
Carotid groove
function- houses internal carotid a. & carotid n.
Foramen rotundum
function- transmits the maxillary n.
Foramen ovale
function- transmits the mandibular n. & accessory meningeal a.
Spine of greater wing
attachments- tensor palatini m. & sphenomandibular lig
Foramen spinosum
function- transmits the middle meningeal a. & the meningeal (recurrent) branch of the mandibular n.
Lateral surface
attachments- temporalis & lateral pterygoid m.
Superior orbital fissure
function- transmits the ophthalmic n., oculomotor n., trochlear n., abducens n., & ophthalmic v.
Lesser wings
attachment- levator palpebrae superioris m.
Anterior clinoid processes
attachments- tentorium cerebelli
Pterygoid fossa
attachments- medial pterygoid m
Scaphoid fossa
attachments- tensor palatini m.
Pterygoid canal
function- transmits the nerve of the pterygoid canal
Lateral pterygoid plate
attachments- lateral & medial pterygoid m.
Pterygoid hamulus
function- deflects the tendon of the tensor palatini m., attachment- buccinators & superior constrictor m, & pterygomandibular raphe