oral Flashcards
what positions food on occlusal surfaces
buccinator and tongue
what nn and vessels may be found in the mandiblar foramen
inf alveolar nn and Aa/Vv
what nn innervates the intrinsic mm of the tongue
CN 12, hypoglossal
lymph drainage of the oral region
typically down and in to the int jugular, crossover may occur to the submandibular lymph nodes but not always
free, attached gingiva and alveolar mucosa
free: not attached to underlying bone, most coronal
attached: firmly attached to underlying bone
alveolar mucosa: superficial to the alveolar bone
inn of the max teeth
ALL BRANCHES OF CNV2
incisors and canine: anterior sup. alveolar nn
PM and half the 1st molar: middle sup. alveolar
2nd half M1 and M2 and 3: post. sup. alveolar
NOT EXACT VARIATION MAY OCCUR
Inn of the maxillary gingiva
CNV2 BRANCHES
incisors to canine: half ant sup alveolar and half infra orbital to the distal
PM: mesial=infraorbital, distal=mid sup alveolar
M: post sup alveolar
man teeth inn
CNV3 BRANCHES
anterior teeth: incisive branch of the inf alveolar
posterior: dental branches of the inf. alveolar
man gingival inn
CNV3 BRANCHES
anterior+PM: mental branch of the inf alveolar
M: buccal branch
inf alveolar continues on past the teeth as?
mental branch of CNV3
where does the inf alveolar nn enter the mandible, landmark?
mandibular foramen, lingula
additional motor inn of CNV3
mylohyoid
ant belly digastric
tensor veli palatini
tensor typmpani
descidous teeth eruption pattern
CI>LI>C>M1>M2
permanent teeth eruption pattern
M1>CI>LI>C>PM1>PM2>M2>M3
opening/closing of the eutachian tube
opens and close with the salpingopharyngeal fold, action done by the tensor palatini veli inn by CN V3
portions of the palate/composition
Hard: maxilla and palatine bones
soft: mm/aponeurosis, mucosa, palatine glands
portions of the pharynx sup to inf
nasopharynx
oropharynx
laryngopahrynx
what can be found in the nasopharynx
eustachian tube
isthmus of the pharynx/transition to oropharynx
contents of the oropharynx
palatopharyngeal arch
palatoglossal arch
from the palate to the tongue
contains palatoglossus mm
palatopharyngeal arch
from the palate to the base of tongue/pharynx
contains the palatopharyngeus mm
waldeyer’s ring
palatine, adenoids and lingula tonsils form a ring of lymphoid tissues for the nasal and oral cavity
epiglottis
tissue that will fold to protect the trachea from debris when ingesting foods
mm of the tongue
intrinsic tongue mm
genioglossus
mylohyoid
geniohyoid
foramen of the hard palate
incivise foramen
greater/lesser palatine foramen
palatine glands secretions
secrete mucus/saliva
portions of the soft palate, landmark?
aponeurosis muscular mucosa glands pterygoid hamulus often present here
uvula
downhang of the soft palate, may contain mm fibers
arches of the posterior oral cavity, contents/between them?
palatoglossal and palatopharygeal arches, between them is the palatine tonsil
contents of the G/L palatine foramen
G/L palatine nn and Aa
what mm goes over the pterygoid notch
tensor palatini veli
musculus uvulae
mm of the uvula
tensor palatini veli action/ inn
CN V3
tenses the soft palate
open the eutachian tube during swallowing and yawning
levator veli palatini action/ inn
CN X PHARYNGEAL BRANCH
elevates soft palate during yawning and swallowing
palatoglossus action/inn
PHARYNGEAL BRANCH CN X
elevates post tongue, draws soft palate onto tongue
palatopharyngeus action/inn
PHARYNGEAL BRANCH CN X
tenses soft palate and pulls walls of pharynx sup,ant and medially while swallowing
musculus uvulae action/inn
PHARYNGEAL BRANCH CNX
shortens uvula/pulls superiorly
incisive foramen contents
nasopalatine nn and Aa
tongue divisions
anterior 2/3 and post 1/3 seperated by circumvalle papailla
post third of the tongue is?
lingual tonsil
wharton’s/stenson’s ducts
whartons= submandibular, located on the lingual frenulum
stenson’s=parotid
genioglossus action/inn
CN 12
tongue protrusions, central depression
hyoglossus action/inn
CN 12
depresses tongue, retrudes
styloglossus action/inn
CN 12
retrudes and curls tongue, helps to form central trough
palatoglossus action/inn
mm of palate=CN 10 inn
elevates posterior tongue/depress soft palate
blood supply/drainage of teeth
aa and vv of same name as the nn that supplies them
blood supply of the tongue
from the ext carotid
gives off lingual aa that forms the sublingual and deep lingual aa to supply the tongue
venous drainage of the tongue
drained by deep lingual, dorsal lingual and sublingual vv
all drain into the internal jugular vv
lymph drainage of the tongue
down and in pattern
usually to subman, sublingual and deep cervical LN
important for cancer metasesis
whartons duct, obstruction?
large duct of the subman gland
can be obstructed due to high mucus content/drying out=leads to pathology/stone formation
what ligament attaches to the lingula
sphenomandibular
posterior superior alveolar foramen contents
posterior superior alveolar nn, aa and vv for max teeth