Oral Cavity & Pharynx Flashcards
If “tensor” is in the name of the nerve, it is a branch of CN V3, unless ________, _____, or _______ are also in the name.
palato, palati, glossus
The word palato in the name of a nerve without “glossus” means that the innervation is from _____.
CN X
CN VII is an _____ derivative and has ______ function
arch 2, sensory and motor
CN IX is an _____ derivative
arch 3
CN XII is a derivative of _______ and has _____ function
occipital somites, motor
the area enclosed by the upper and lower dental arches and opening posteriorly into the oropharynx is called ________
oral cavity proper
_______ is covered in stratified squamous epithelium and overlies the lamina propria (loose connective tissue)
oral mucosa
The ________ is a dense connective tissue layer deep to lamina propria and anchored to the bone by periosteum
oral submucosa
The 3 types of oral mucosa, their makeup, and their location are:
masticatory —> keritinized/parakeritinized, gingiva and hard palate
Lining —> nonkeritinized; lips, cheek, soft palate, ventral tongue
Specialized —> dorsal tongue, papillae and taste buds
The core of orbicularis oris houses this structure:
VN VII
The ______ is the junction between keratinized and non keratinized tissue in the bottom lip
vermillion border
________ is often due to the cold, disease, or a drug reaction and restricts blood flow.
peripheral cyanosis
Blood supply to the lips:
superior and inferior labial arteries from facial artery
A patient presents with a lesion on his medial lower lip which appears cancerous. Which lymph nodes are the main concern for metastasis?
submental nodes
All areas of lips except median lower lip drain to the
submental nodes
Blood supply to the cheeks is via _________ and ________
buccal branches of maxillary artery, facial artery
venous drainage of the cheeks is via ______ and ________ to the cavernous sinus
facial vein, pterygoid plexus
lymph drainage of cheeks is via ______ nodes to the ________
buccal nodes, submandibular nodes
The blood supply of the upper teeth are these 3 arteries:
anterior, middle, and posterior superior alveolar (via maxillary artery)
The upper and lower teeth are ______ derivatives
arch 1
Sensory innervation for upper teeth is ____ via ________
somatic afferent, superior alveolar nerves (CN V2)
The arterial supply of the lower teeth is provided by _________
inferior alveolar arteries (via maxillary artery)
Sensory innervation of lower teeth is ___ and is provided by _______ via ______
SA, inferior alveolar nerves, CN V3
Teeth are all anchored to the alveolar bone by ________
periodontal ligament
Enamel is secreted by _______, while dentin is secreted by __________, and cementum is secreted by _________.
ameloblasts, odontoblasts, cementoblasts
gums of bottom row of first 5 teeth innervated by ___________ nerve
mental branch of inferior alveolar
gums of bottom back 3 teeth innervated by
buccal branch of inferior alveolar nerve
Bottom first 3.5 teeth innervated by
incisive branch of inferior alveolar nerve
Bottom back 4.5 teeth innervated by
dental branches of inferior alveolar nerve
lower jaw entirely innervated by this cranial nerve
CN V3
upper mouth entirely innervated by this cranial nerve
CN V2
The _____ nerve and the _______ artery exit from the incisive canal in the very front of the hard palate
nasopalatine (CN V2), sphenopalatine
The top first 3 teeth are innervated by the ________ nerve, the middle 2.5 teeth are innervated by the ______ nerve, and the back 2.5 teeth are innervated by the _______ nerve.
anterior superior alveolar, middle superior alveolar, posterior superior alveolar
The hard palate is innervated by the _______ and the _______ nerves
nasopalatine, greater palatine
The soft palate is innervated by the ________, which is ___
lesser palatine nerve, somatic afferent
The blood supply of the hard palate is made up of the _______ and the _______ arteries which stem from the _______ artery.
sphenopalatine, greater palatine, maxillary
The blood supply of the soft palate is made up of the ________ from the ________, and the __________ from the _________.
lesser palatine artery, maxillary artery, ascending palatine artery, facial artery