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Anatomy Oral Cavity
KYCOM Block 3
80
Anatomy
Graduate
10/31/2012

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Term
what does the oral region include
Definition
oral cavity, teeth, gingiva, tounge, palate, region of palatine tonsils
Term
what are the functions of the oral cavity
Definition
taste, lingual manipulation of food, ingestion, prep for sotmach and SI
Term
what are the parts of the oral cavity
Definition
vestibule, oral cavity proper
Term
what are the boundries of the oral vestibule
Definition
space between lips, cheeks, teeth, and gums
Term
what are the boundries of the oral cavity proper
Definition
between upper and lower dental arches (maxillary and mendibular alveolar processes and the teeth they hold)
Term
what forms the roof of the oral cavity
Definition
palate
Term
what does the oral cavity communicate with posteriorly
Definition
oropharynx
Term
what does the palate form
Definition
roof of mouth, floor of nasal cavity
Term
what are the parts of the palate
Definition
hard palate, soft palate
Term
what forms the hard palate
Definition
palatine processes of maxilla, horizontal plates of palatine bones
Term
what is the hard palate continous with
Definition
soft palate
Term
how is the hard palate mucosa secured
Definition
tightly to the undelying bone
Term
describe the mucosa of the soft palate
Definition
mobile fold
Term
what is the soft palate attached to
Definition
posterior border of the hard palate
Term
what projects from the palate, where
Definition
posterior midline is the uvula
Term
what is the soft palate composed of
Definition
mucous membrane, palatine aponeurosis, muscules
Term
what is the palatine aponeurosis attached to
Definition
posterior border of hard palate
Term
where does the palatine aponeurosis originate from
Definition
tensor veli palatini muscle
Term
what are the muscules of the soft palate
Definition
tensor veli palatini, levator veli palatini, platoglossis, palatopharyngeus
Term
what does the tensor veli do
Definition
tenses the palate and opens pharyngotympanic tube during swallowing and yawning
Term
what is the tensor veli palatini innervated by
Definition
CN V
Term
what does the levator veli palatini do
Definition
elevate palate in swallowing and yawning
Term
what is the levator veli palatini innervated by
Definition
CN X
Term
what does the platglossus do
Definition
elevates posterior tounge and draws soft palate onto tounge
Term
what is the palatoglossus innervated by
Definition
CN X
Term
what does the palatopharyngeus do
Definition
tenses soft palate and pulls walls of pharynx superior, anterior, and medial duriing swallowing
Term
what is the palatopharyngeus innervated by
Definition
CN X
Term
what is the primary artery for the palate
Definition
descending palatine
Term
what are the branches of the descending palatine artery
Definition
lesser palatine
Term
what is the descending palatine artery a branch of
Definition
facial n
Term
how does the descending palatine artery end
Definition
anastamose with lesser palatine a
Term
what nerve provides the branches for the nerves of the palate
Definition
V2
Term
what nerve branches supply the palate
Definition
nasopalatine, greater palatine, lesser palatine
Term
what does the nasopalatine go through
Definition
incisive foramen
Term
what does the greater palatine go through
Definition
greater palatine foramina
Term
what does the lesser palatine go through
Definition
lesser palatine foramina
Term
what are the major salivary glands
Definition
parotid, submandibular, sublingual
Term
what is the frenulum
Definition
connects tounge to floor of mouth, vertical fold
Term
what is the composition of the tounge
Definition
striated m and mucous membrane
Term
what is the tounge attached to
Definition
styloid process, soft palate, mandible, hyoid bone
Term
what divides the tounge in right and left halves
Definition
median fibrous septum
Term
what divides the tounge into anterior and posterior
Definition
sulcus terminalis
Term
where is the foramen cecum
Definition
apex of sulcus terminalis
Term
what is the anterior part of the tounge called
Definition
oral part
Term
what is the posterior part of the tounge called
Definition
pharyngeal part
Term
what are the types of tounge muscles
Definition
intrinsic, extrinsic
Term
what are the extrinsic muscles of the toune
Definition
genioglossus, hyoglossus, styloglossus, palatoglossus
Term
what innervates tounge muscles
Definition
CN XII except palatoglossus which is CN X
Term
in the tounge, what muscle causes protrusion
Definition
genioglossus
Term
in the tounge, what muscle causes retraction
Definition
styloglossus, hyoglossus
Term
in the tounge, what muscle causes depression
Definition
hyoglossus
Term
in the tounge, what muscle causes retraction and elevation of posterior 1/3
Definition
styloglossus and palatoglossus
Term
in the tounge, what muscle stops changes
Definition
intrinsic muscles
Term
what artery supplies the tounge
Definition
lingual
Term
what veins drain the tounge
Definition
internal jugular
Term
where does the lymph from the tip of the tounge go to
Definition
submental nodes
Term
where does the lymph from the sides of the anterior 2/3 of the tounge go to
Definition
submandibular and deep cervical
Term
where does the lymph from the posterior 1/3 of the tounge go to
Definition
deep cervical
Term
what provides sensory for the anterior 2/3 of the tounge
Definition
lingual nerve. chorda tympani
Term
what is the lingual nerve a branch of
Definition
CN V
Term
where does the chorda tympani come from
Definition
CN VII
Term
what provides sensory for the posterior 1/3 of the tounge
Definition
CN IX
Term
what came first, the thyroid cartilage or the gland
Definition
thyroid cartilage
Term
what is the superior horn of the thyroid cartilage connected to
Definition
hyoid
Term
what is between the cricoid arch and first tracheal cartilage
Definition
cricotracheal membrane
Term
what vein is visible under the tounge
Definition
deep lingual
Term
what is the platoglossus innervated by
Definition
pharyngeal branch of CN X
Term
what tests the integrity of CN 12, how can you tell
Definition
genoglossus, tounge will be tilted to the paralyzed nerve
Term
what is the hard palate made of
Definition
bone
Term
why is the hard palate mucosa so adherent
Definition
to help you chew, rugae help manipulate food and need to be held in place
Term
why does the soft palate need an extensive blood supply
Definition
because it needs rapid healing because of lots of damage from food
Term
what is the ascending palatine artery a branch of KNOW ME
Definition
facial
Term
how does the ascending palatine artery end KNOW ME
Definition
anastamose with lesser palatine
Term
what do sympathetics do to glands
Definition
turn them off
Term
what do parasympathetics do to glands
Definition
turn them on
Term
what are the two parts of the tounge
Definition
body and root
Term
what is the vermillion border
Definition
border between pink of lip and rest of skin
Term
what is the function of the frenulum
Definition
holds lip in place against tounge
Term
what are the teeth innervated by
Definition
V2: 3 superior alveolar nerves (posterior, middle, anterior)
V3: inferior aveolar
Term
why is the soft palate mobile
Definition
tries to close nasal cavity when eating
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