Lecture 2: Anatomy of Associated Structures
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46 Terms
salivary glands drain into the
oral cavity
salivary glands
secrete saliva which keeps the oral cavity moist and mixes with food to facilitate mastication
secretes into oral cavity through papilla
minor glands produce mucoid secretions, major ones produce serious fluid secretions
three pairs of major glands which are
parotid salivary gland
zygomatic salivary gland
mandibular salivary gland
what is 1?
parotid salivary gland
what is 2?
parotid duct
what is 3?
mandibular salivary gland
what is 4?
mandibular lymph nodes
the ducts of the zygomatic salivary gland open near
1st and 2nd maxillary molars
the parotid duct opens near
maxillary 4th premolar
what salivary gland is only in cats?
lingual molar salivary gland
where is the lingual molar salivary gland located in cats?
right by the mandibular 09s
what is this?
lingual molar salivary gland next to tooth 409 (right mandibular 1st molar)
why are these landmarks significant?
used for caudal maxillary nerve block
what is 1?
zygomatic process of the frontal bone
what is 2?
maxillary foramen (leads to infraorbital canal)
what is 3?
maxillary tuberosity
what is 4?
2nd maxillary molar tooth
what is the clinical significance of the infraorbital and middle mental foramen?
sites of nerve blocks
what is 1?
infraorbital foramen
what is 2?
middle mental foramen
the mandibular foramen is the site of the
inferior alveolar nerve block
what is this?
mandibular foramen
what is this?
palatine fissure
what is the clinical significance of the palatine fissure?
recognize maxilla on radiographs
what should the mandibular symphysis look like on radiographs?
should be radiolucent
what is this?
mandibular symphysis
clinical significance of mandibular symphysis
the left and right mandibles are joined by a fibrocartilaginous synchondrosis
normal radiolucent line
some degree of mobility is normal depending on age and breed
what is this?
mandibular canal
clinical significance of mandibular canal
recognize mandible on radiographs
aware of location of major blood/nerve supply during surgical extraction of mandibular teeth
what is the green arrow showing?
maxillary nerve block
what is the red arrow showing?
infraorbital nerve block
what is the purple arrow showing?
inferior alveolar nerve block
what is the blue arrow showing?
mental nerve block
maxilla sensory innervation to teeth and oral cavity
trigeminal nerve → maxillary nerve → infraorbital nerve to alveolar branches and pterygopalatine nerve → palatine nerves
mandibular sensory innervation to teeth and oral cavity
trigeminal nerve → mandibular nerve → inferior alveolar nerve to alveolar sensory nerves → mental nerve
what is 13?
facial artery and vein
what is 14?
lingual artery and vein
inferior alveolar artery
courses through mandibular foramen and canal to supply mandibular teeth and bone
3 mental branches of inferior alveolar artery
course through caudal, middle, and rostral mental foramena → may encounter when performing surgical extraction of mandibular canine teeth
major and minor palatine arteries
supply hard and soft palate, periosteum, alveolar bone of maxillary teeth
infraorbital artery
continuation of maxillary artery → emerges from infraorbital canal
several branching alveolar arteries supply the
maxillary teeth
what is 1?
inferior alveolar artery
what is 2?
rostral mental artery
what is 3?
middle mental artery
what is 4?
caudal mental artery