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30 Cards in this Set

  • Front
  • Back
what are the bony parts of the nose? cartilagenous?
nasal bones, frontal processes of maxillae, nasal part of frontal bone and its nasal spine, and bony part of nasal septum. Septal cartilage, two lateral cartilages, and two alar cartilages.
Direct blow to the nose may result in fracture of the cribiform plate of ethmoid bone thus resulting in what?
tearing of olfactory nerves and CSF rhinorrhea.
what are the parts of the ethmoid bone??
the cribiform plate, the superior concha, middle concha, and perpendicular plate part of nasal septum.
what is the drainage of these sinuses:
1. frontal
2. ethmoidal sinuses?
3. sphenoid?
4. maxilary
5. nasolacrimal duct
1. middle meatus
2. anterior and middle into the middle meatus, posterior into the superior meatus
3. sphenoethmoidal recess to the superior meatus
4. drains superiorly to the middle meatus
5. inferior meatus
what is the anterior opening of the nasal cavity? the posterior opening?
the nares. the choana
the 3rd part of the maxillary artery is called what? where does it enter into the fossa for which it is named?
the pterygopalatine part, via the pterygomaxillary fissure
what are the branches of the pterygopalatine part of the maxillary artery?
posterior superior alveolar, descending palatine arteries which divide into the greater and lesser palatine arteries, infraorbital, sphenopalatine, pharyngeal, artery of pterygoid canal
what three arteries supply the nasal cavity via branches?
opthalmic, facial, and maxillary
the maxillary nerve must pass through what to enter the pterygopalatine fossa?
the foramen rotundum
what are the 6 branches of the maxillary nerve we need to know and where do they each go?
1. zygomatic: enters orbit
2. posterior superior alveolar: to the upper molars
3. infraorbital nerves: to middle and anterior alveolar teeth and face below orbit and nares
4. pterygopalatine nerves: runs between the maxillary nerve and the pterygopalatine ganglion
5. greater and lesser palatine nerves: off the pterygopalatine ganglion and run inferior
6. nerve to pterygoid canal: carries preganglionic parasympathetic and postganglionic sympathetic fibers to the pterygopalatine ganglion.
the opthalmic nerve supplies the nasal cavity via what nerve?
anterior ethmoidal nerve which is a branch of the nasociliary nerve
the pterygopalatine ganglion receives its parasympathetic nerves from where?
via greater petrosal of CN VII and nerve of the pterygoid canal.
where does the pterygopalatine ganglion get its postganglionic sympathetic fibers? what nerve distributes them after this?
from the superior cervical ganglion via the carotid plexus, the deep petrosal nerve, and the nerve of the pterygoid canal. maxillary
what is the passage of postganglionic parasympathetic fibers to the lacrimal gland from the pterygopalantine ganglion? what nerve did these fibers originate from?
pterygopalatine nerves -> maxillary -> zygomatic -> zygomatotemporal -> communicating branch -> lacrimal nerve
the roof of the mouth consist of what bones?
maxillary and palatine bones.
what is the posterior boundary of the oral cavity?
palatoglossal arch
what is the motor and sensory innervation of the tongue?
motor innervation is via the hypoglossal except for palatoglossus which uses vagus. The posterior of the tongue (over the lingula tonsils), just anterior to the epiglottis, uses the internal laryngeal nerve (vagus) as sensory and taste. The posterior 1/3 of the tongue uses the glossopharyngeal for taste and sensory. The anterior 2/3 of tongue uses the lingual nerve (trigem) as sensory and the fibers from the chorda tympani (facial) that join with the lingual nerve for taste.
what are the beginning and ending for the nasopharynx?
choana to soft palate
1. frontal sinus
2. middle meatus
3. inferior meatus
4. superior meatus
5. sphenoethmoidal recess
6. sphenoid sinus
7. torus tubaris
8. opening of auditory tube
9. pharyngeal recess
10. salpingopharyngeal fold
the intrinsic muscles of the tongue are? extrinsic?
superior longitudinal, inferior longitudinal, transverse, and vertical. genioglossus, hyoglossus, styloglossus, palatoglossus
describe the three lingual papillae we need to know.
vallate are posterior and large with trenches surrounded by taste buds, foliate are small lateral folds, the fungiform are small and red and more anterior, note all of these contain taste receptors in taste buds.
where does lymph from the apex of the tongue drain? lateral anterior 2/3? medial anterior 2/3? posterior?
submental nodes, submandibular nodes, inferior deep cervical nodes, and superior deep cervical lymph nodes.
what arches (and respective muscles) are anterior and posterior to the palatine tonsils?
anterior is palatoglossal and posterior is palatopharyngeal.
what is the arterial supply and venous drainage of the palatine tonsil?
tonsillar branch of the facial artery and external palatine vein. note that the vein ends in the facial vein and can be damaged during tonsilectomy
what are important structures posterior to the palatine tonsil?
superior constrictor muscle, internal carotid, internal jugular, CN 9 and 10.
the lingual artery and vein run deep to what muscle? does the lingual nerve run superficial or deep to this muscle? how about the hypoglossal nerve and its relation to this muscle and to the lingual nerve?
the hyoglossus, superficial, superficial to the hyoglossus and inferior to the lingual
where does the sublingual gland empty?
floor of the mouth via small ducts and some ducts may empty into the submandibular duct
what is the relationship of the submandibular gland and the mylohyoid? submandibular duct?
most of the gland is inferior to the mylohyoid, but a small part of it hooks around the muscle to lie in the floor of the mouth which is the part that contains the duct.
the submandibular gland and the lingual nerve are both located inbetween what two muscles in the floor of the mouth
the hyoglossus and the geniohyoid.
what nerve may be injured in a tonsillectomy?