oral cavity (visual inspection/palate) Flashcards
roof of OC
hard and soft palate
floor of OC
- muscular diaphragm (mylohyoid mm)
- geniohyoid mm
- tongue
lateral walls of OC
cheeks (merge with lips anteriorly)
anterior opening of OC
oral fissure
posterior opening of OC
oropharyngeal isthmus (opens into oral part of pharynx)
two regions of OC
oral vestibule (outer) and oral cavity proper (inner)
oral vestibule
- space between teeth/gingiva and cheeks/lips
- open and close by mm of facial expression
oral cavity proper
- inner aspect of dental arches
- fully occupied by tongue when mouth is closed
cheeks consist of
- buccinator m
- fascia between the skin and oral mucosa
muscular diaphragm is made of
paired mylohyoid mm
-fills gap between L and R sides of mandibular body
geniohyoid mm are ___ relative to mylohyoid mm
above
tongue is ___ to the geniohyoid m
superior
structural processes of the maxilla
alveolar and palatine processes
what foramen is found on maxilla
incisive foramen
what passes through incisive foramen
nasopalatine n and vessels
two features / processes on palatine bone
horizonatal plate and pyramidal process
4 important features on palatine bone
- posterior nasal spine
- greater palatine foramen
- lesser palatine foramen
- pyramidal process
posterior nasal spine is associated with attachment of what
soft palate
where is greater palatine foramen found
distal to 2nd molar
pyramidal process is found between
inferior ends of pterygoid plates
genioglossus mm attach to
superior mental spines
geniohyoid mm attach to
inferior mental spines
pterygomandibular raphe (ligament) attaches to
retromandibular triangle and hamulus
what passes through mandibular foramen
inferior alveolar n and vessels
important features of sphenoid bone
- pterygoid process and spine
- haulus
- scaphoid fossa
- spine
hamulus acts as a pulley for
tensor veli palatini m
tensor veli palatini m origin
scaphoid fossa and spine of sphenoid bone
cartilagenous part of PT tube