G10 Oral Cavity Flashcards
The posterior border of the oral cavity is the:
Oropharyngeal isthmus
The lip coloration is because of superficially present _____
Vessels
The ____ arch is the posterior extent of oral cavity proper
Anterior Arch
The tensor veli palatini m is found between _____ and _____ and it tenses the soft palate.
Medial pterygoid plate
Lateral pterygoid plate
Levator veli palatini is ____ and ____ to tensor veli palatini.
Posterior
Medial
The _____ descends thru the palatine canal and gives rise to Greater and Lesser Palatine aa.
Greater palatine a supplies _____ and passes thru _____.
Lesser palatine supplies ____ and passes thru ____.
Descending palatine a.
Anterior palate
Greater Palatine Foramen
Posterior Palate
Lesser palatine foramen
Tensor Veli Palatini m is innervated by ____
Levator veli palatini, palatoglossus, palatopharyngeus, musculus uvula, salpingopharyngeus mm are all innervated by _____ via _____
CN V3 (mandibular)
CN X (Vagus) Pharyngeal plexus
CN ____ is vulnerable to injury during Tonsillectomy because it lies on the lateral pharyngeal wall.
IX
The ____ gland has numerous openings but the ____ gland has one opening into the oral cavity.
Sublingual
Submandibular
The submandibular duct is also known as ____ duct. It runs _____ to the sublingual gland
Wharton’s
Medial
For the head, all preganglionic sympathetic fibers are located in the _____;
All postganglionic sympathetic are located in the _____
T1 Lateral Horn
Superior Cervical Ganglion
CN XII (Hypoglossal) provides ____. But it does not innervate this specific structure:
Motor innervation to tongue
Palatoglossus m. (Vagus innervates)
CN IX (glossopharyngeal) provides ____
Sensory to posterior tongue
These paired mm fused in midline protrude the tongue:
Paralysis of CN XII (unilateral) causes deviation of tongue toward paralyzed side.
Genioglossus m.
The Lingual artery supplies ____ structures of the oral cavity and has 3 branches:
Deep
Dorsal Lingual
Deep Lingual
Sublingual
Tongue Special Sensory Innervation:
- VII (Taste via chorda tympani) anterior 2/3
- Glossopharyngeal (IX) taste posterior 1/3
- Vagus (X) Taste for root of tongue/epiglottis
Tongue General Sensory
- Lingual n (CN V3) sensory anterior 2/3
- Glossopharyngeal (CN IX) Sensory posterior 1/3
- Vagus (X) root of tongue and epiglottis sensory
The primary epithelium of the oral cavity is _____
Nonkeratinized stratified squamous epithelium
Certain areas of the oral cavity have _____ epithelium (specifically the hard palate, gingiva, Dorsum of tongue) that is called _____ mucosa
Parakeratinized stratified squamous (special keratinized)
Masticatory
The ___ shape of the filiform papilla are pointed ____ (to collect the ice cream from the cone). They have no taste function.
Conical
Posteriorly
Fungiform papilla have taste buds and are ____ keratinized
Lightly
Foliate papilla have taste buds, are found on the ____ tongue, but are only found on ____
Lateral
Children
Vallate (Circumvallate) papilla are ____ glands the produce ____ to fill the moats around them. They are also filled with taste buds around the moat.
Lingual
Serous/Salivary secretion
Polarized, protein secreting, pyramidal cells in salivary glands. Secretory (zymogen) granules. Basophilic cytoplasm.
Serous Cells
Produce hydrophilic glycoprotein mucins in salivary glands. Cuboidal/columnar
Mucous Cells
Within basal lamina of secretory unit. Contracts and accelerates salivary gland secretion. Prevents distinction when lumen fills.
Myoepithelial cells
Salivary gland ducts that modify serous secretion. (From acini, low cuboidal epithelial)
Intercalated ducts
Salivary gland ducts that modify serous secretion. (Striations)
Striated ducts
Parotid Gland has ___ acinar (serous) cells and ___ cells (unique to glands)
Branched
Adipose
