Nasal Cavity and Pterygopalatine Fossa Flashcards
Maxillary teeth and _________ share SA sensory innervation.
maxillary sinus
Proximity of _________ and _________ sinuses to optic nerve can put pressure on the nerve during sinusitis and cause optic neuritis (loss of vision)
ethmoid, sphenoid
Inability to look up after a traumatic injury to the face is due to ____________
entrapped inferior rectus muscle
The pterygopalatine fossa is a gap between the _________ and the _________.
viscerocranium, neurocranium
The pterygopalatine fossa has 3 bordering structures:
Maxillary sinus, palatine bone, pterygoid process of sphenoid
The _________ opens posteriorly to the pterygopalatine fossa and conducts the _________
foramen rotundum, maxillary nerve (V1)
Posteriorly to the pterygopalatine fossa is the ___________ which conducts the _______________ (nerve)
pterygoid canal, nerve of pterygoid canal (Vidian nerve)
The 4 exits from the pterygopalatine fossa are the:
sphenopalatine foramen, inferior orbital fissure, greater and lesser palatine foramina, pharyngeal canal (to nasopharynx)
The 3 branches of maxillary nerve (CN V2) are: These are all somatic afferent
Nasopalatine nerve (nasal septum & anterior hartd palate) Posterior lateral nasal branches (to lateral nasal wall) Greater and lesser Palatine nerves (hard and soft palate)
The sensory branch of the opthalmic (V1) nerve is:
anterior ethmoidal nerve branches (orbit and anterosuperior nasal cavity)
The 4 SA sensory branches of the maxillary nerve to the nasal cavity are:
nasopalatine nerve, posterior lateral nasal branches, infraorbital nerve, pharyngeal nerve
The nasopalatine nerve is a branch of _____ and is SA to __________
CN V2, nasal septum
The posterior lateral nasal branches are branches of _______ and are SA innervation to _______
CN V2, lateral nasal wall
The infraorbital nerve is a branch of _____ and supplies SA to ______
CN V2, vestibule of nasal cavity
The pharyngeal nerve is a branch of ______ and provides SA to _______
CN V2, nasopharynx
The _______ ganglion is also referred to as the “hay fever” ganglion
pterygopalatine ganglion
The VE parasympathetic fibers that are preganglionic begin in the __________, continue in _______ (nerve), continue as the ________ nerve which runs right by the geniculate ganglion, join with _________ nerve and becomes the __________ (nerve). The postganglionic fibers hitchhike on the ______ nerve.
brainstem (between midbrain and pons), facial nerve, greater petrosal nerve, deep petrosal nerve, nerve of the pterygoid canal, CN V2
3977 COPS
3 —> ciliary ganglion 9 —> otic ganglion 7 —> pterygopalatine 7 —> submandibular
Postganglionic parasympathetic VE fibers from the __________ ganglion innervate the lacrimal gland, oral mucosa, and nasal mucosa
pterygopalatine ganglion
indirect Postganglionic Pterygopalatine branches travel in the _________ nerve, continue in the __________ nerve branch, then the __________ branch, and finally in the _________
Maxillary nerve (V2), zygomatic branch, communicating branch, lacrimal nerve (part of V1)
The lacrimal nerve is a branch of _____
CN V1
Postganglionic sympathetic fibers of the nasal cavity, palate, and nasopharynx begin in the _________ ganglion, course through the _________ , become the _________ nerve, join with the ________ nerve to become the nerve of the pterygoid canal, and then pass through the _______ ganglion without synapsing. Their purpose is primarily __________
superior cervical ganglion, periarterial plexus of the carotid artery, deep petrosal nerve, greater petrosal nerve, pterygopalatine ganglion, vasoconstriction
The ________ nerve exits the foramen lacerum on its way to help form the vidian nerve (nerve of the pterygoid canal)
deep petrosal nerve
Fibers of the olfactory nerve (CN I) have their cell bodies in the __________ and fibers in the _________ (lateral wall and septum)
olfactory epithelium, olfactory mucosa
The artery to the facial-maxillary region is the ________ artery which travels through the ________ and then branches into _________ to maxillary teeth
infraorbital artery, infraorbital canal/fissure, superior alveolar arteries
The artery to the nasal cavity is a branch of the _________ artery and is called the _________.
maxillary artery, sphenopalatine artery
The sphenopalatine artery branches into the septal branch which supplies the ___________, and ________ via the _______, and has anastamoses with the ________. The ________ branches supply the lateral wall of the nasal cavity.
septum, anterior hard palate, incisive canal, greater palatine artery, posterolateral branches
The _________ branches of the sphenopalatine artery supply the lateral nasal cavity wall
posterolateral branches
The __________ artery branches into the greater palatine artery which supplies the hard palate via the ________ foramen, and the lesser palatine artery that supplies the soft palate via the _______ foramen
descending palatine artery, greater palatine foramen, lesser palatine foramen
The orange diamond is the ______
The yellow dot is the ______
The purple triangle is the ______
The blue dot is the ______
The green arrow is the _______ supplying the soft palate
The white arrow is the ______ supplying the hard palate
Maxillary artery, Descending palatine artery, sphenopalatine artery, infraorbital artery, lesser palatine artery, greater palatine artery
Orange diamond is _______
Purple arrow pointing to the ______
Green dot is the ______ and supplies the ______, ______ (via incisive canal), and has anastamoses with the _____
Blue squares are the ________ branches supplying the lateral nasal wall
Maxillary artery, sphenopalatine artery, septal branch, septum, hard palate, greater palatine artery, posterolateral branches
Opthalmic artery is a branch of _____ artery and gives off septal and lateral branches of _________ arteries.
The __________ artery is a branch of ______ artery and also gives off septal and lateral branches
internal carotid artery, anterior & posterior ethmoidal arteries, superior labial branch of facial artery, external carotid artery
veinous drainage of the pterygopalatine fossa is via the ________ and _______ draining into the _______ vein
pterygopalatine plexus, retromandibular veins, maxillary veins
Kiesselbach’s plexus (area of 90% of epistaxis) is formed by these 4 arteries:
Greater palatine artery, anterior ethmoidal artery, sphenopalatine artery, superior labial artery
Kiesselbach’s Plexus (area of 90% of epistaxis) is formed by 4 arteries which are branches of these 3 arteries:
Maxillary artery, opthalmic artery, facial artery
Veins in nasal cavity play a major role in ________
thermoregulatory system of the body
The veins of the nasal cavity:
The ______ vein drains to the cavernous sinus, the _____ vein drains to the facial vein, and the _______ vein drains to the maxillary vein.
inferior opthalmic vein, superior labial vein, sphenopalatine vein
Lymphatic drainage of nasal cavity:
vestibule drains to the ______ nodes, the rest of the cavity drains to the _______, especially _________ node.
submandibular nodes, deep superior cervical nodes, jugulodigastric node
This is a scan of a fracture of the ______ causing leakage of ______, which can lead to ______.
cribiform plate, CSF, meningitis
