Pterygopalatine Fossa and Nasal Cavity Flashcards
blue arrow

middle meatus
blue arrow

sphenopalatine artery along with nasopalatine nerve
red arrow

palatine
orange arrow

pterygoid process
light blue arrow

pterygoid canal
green dot

maxilla
after sympathetic nerves pass through the pterygopalatine ganglion, they hitchhike on _____ to innervate ______
branches of V2 maxillary nerve
muscosal linings
green arrow structure and nerves

palatine canal
greater and lesser palatine nerves
the nasopalatine nerve passes through the ________ to get from the nasal cavity to the hard palate
incisive canal
What is the significance of Kisselbach’s area?
region of the medial wall of the nasal cavity with highly vascularized anastomosis and the site of profuse nasal bleeding
blue arrows
communicate to the nasal canvity via

ethmoid sinuses
numerous miniscule holes
blue arrow

alar cartilage
blue arrow

lacrimal
green arrow

pterygopalatine fossa
green arrow

maxillary nerve
purple arrow

sphenoethmoidal recess
green arrow

frontal sinus
the red arrow represents which nerve

internal carotid plexus
purple dot

pterygoid process of the sphenoid
green arrow

nasopalatine nerve (medial wall)
red arrow

posterior and lateral nasal arteries along with nasal nerves
where are olfactory nerves located within the nasal cavity
superior portion of the nasal cavity inferior to the cirbiform plate
green arrow

ethmoidal branches of the ophthalmic nerve
blue triangle
what is on the other side?

pterygomaxillary fissure
infratemporal fossa (muscles of mastication, buccinator, etc)
What nerve travels through the foramen rotundum into the pterygoid process
V2 maxillary nerve
(pink arrow)

which nerves travel through the sphenopalatine foramen
posterior lateral nasal nerves, nasopalatine nerve
what forms the midline nasal septum
perpendicular plate of the ethmoid bone
green arrow

nasal vestibule
the nasal arteries are on the ________ wall of the nasal cavity
lateral
red arrow

maxillary sinus
green arrow (structure and nerve)

foramen rotundum
V2 maxillary nerver
periwinkle circle
What is on the other side?
What travels through?

pterygoid canal
middle cranial fossa
autonomic fibers to pterygopalatine ganglion
the choana is the passage between the nasal cavity and
nasal pharynx
red arrow

opening of the maxillary sinus- communcation between maxillary sinus and nasal cavity
pink arrow

sphenoethomoid recess
orange arrow

posterior lateral nasal arteries
blue arrow (structure and nerve)

pterygoid canal
nerve of the pterygoid canal:
greater petrosal branch of CN VII (preganglionic parasympathetic) and deep petrosal branch of internal carotid plexus (post ganglionic sympatheitic)
green arrow

nasal bone
pink arrow

opening of the maxillary sinus (in the hiatus semilunaris)
pink arrow

fibroareolar tissue
blue arrow

external nasal branches of the ophthalmic nerve
blue arrow

ethmoid air cells
the nasopalatine nerve exits the pyergopalatine fossa through
the sphenopalatine foramen
blue arrow

vomer
blue arrow

orbital surface of the greater wing of the sphenoid bone
the deep petrosal nerve carries what type of fibers
post-synaptic sympathetics from internal carotid plexus (all sympathetics of the head and neck synpase in the superior cervical ganglion after ascending the chain)
green arrow

perpindicular plate of the ethmoid
red arrow

superior orbital fissure
red arrow

lateral cartilage
communication between the pterygopalatine fossa and the infratemporal fossa
pterygomaxillary fissure

the zygomatic nerve branches into
zygomaticotemporal
zygomaticofacial
light blue arrow represents

pterygopalatine ganglion
red arrow

septal cartilage
red dot

inferior nasal concha
three parts of the special sensorty olfactory nerve
olfactory filaments (through cribiform plate)
olfactory bulb
olfactory tract
blue arrow

greater and lesser palatine nerves
red arrow

perpendicular plate of the palatine bone
blue arrow

posterior lateral nasal nerves- branch of maxillary
which concha is not a part of the ethmoid bone
inferior nasal concha
green arrow

septal cartilage
posterior lateral nasal nerves exit the pterygopalatine fossa through the
sphenopalatine foramen
green area

ethmoid bone
the sphenopalatine artery is on the ______ wall of the nasal cavity
medial
green arrow

hiatus semilunaris
red arrow
communicates with the nasal cavity via

sphenoid sinus
sphenoethmoidal recess
which artery of the nasal cavity anastamosis with the greater palatine arteries
sphenopalatine artery
In the nasal cavity, which arteries are branches of the internal carotid system
ethmoidal branches of the ophthalmic artery
area surrounded by blue line

choana
blue arrow

zygomatic nerve
red dot

inferior nasal concha
green arrow
communicates with nasal cavity via

frontal sinus
frontonasal duct of the hiatus semilunaris
purple circle
what is on the other side?
what travels through?

palatine canal
mouth
descending palatine artery
greater and lesser palatine nerves
the greater and lesser palatine nerves are branches of
V2 Maxillary
green arrow

superior meatus
red arrow

sphenopalatine artery
red arrow

nasopalatine nerve
green arrow
communication between ______ and ________

sphenopalatine foramen
pterygopalatine fossa and the nasal cavity
red arrow

infraorbital nerve
green circle
What is on the other side?
What travels through?

foramen rotundum
brain, middle cranial fossa
V2 maxillary nerve
the zygomatic nerve exits the pterygopalatine fossa through the
inferior orbital fissure
(blue)

somatic sensory nerves of the nasal cavity follow the path of which artery branch
ophthalmic nerve follows internal carotid
maxillary nerve follows external carotid
the greather and less palatine nerves exit the pterygopalatine fossa through the
palatine canal
green arrow

horizontal plate of the palatine bone
what two nerves converge to form the nerve of the pterygoid canal
deep petrosal (symp) and greater petrosal (para)
pink arrow

foramen rotundum
Nerves in the nasal cavity carrying somatic sensory
CN V1 (ophthalmic) , CN V2 (maxillary)
what does the nasopalatine nerve innervate?
nasal septum, passes through incisive canal to innervate the anterior region of the palate

the orange arrow represents what nerve

nerve to pterygoid canal (combination of deep and greater petrosal)
blue area

Kisselbach’s area
green dot

superior concha
the pink arrow represents which nerve

deep petrosal nerve
blue dot

middle concha
blue dot

ethmoid
green arrow

descending palatine artery along with greater and lesser palatine nerves
orange arrow

opening of the sphenoid sinus- communication between sphenoid sinus and nasal cavity
blue arrow

frontonasal duct - communication between frontal sinus and nasal cavity
green arrow

ethmoidal branches of the ophthalmic artery
orange circle(ish)
what is on the other side?
what goes through here?

inferior orbital fissure
orbit
infraorbital nerve, zygomatic nerve (branches of maxillary), and infraorbial vessels
the _____ artery dives through the pterygomaxilary fissure into the _______ and then _______
maxillary
pterygopalatine fossa
distributes
pink arrow

pterygopalatine nerves
the infraorbital nerve exits the pterygopalatine fossa through the
inferior orbital fissure (red)

green dot

nasal cavity
the blue arrow represents which nerve

greater petrosal nerve
purple shaded area

palatine bone
green arrow represent which nerve traveling through what space

facial nerve traveling through the internal aucostic meatus
In the nasal cavity, which arteries are branches of the external carotid system
nasal branches of facial artery, sphenopalatine artery (branch of maxilla), posterior lateral nasal arteries (branch of descending palatine artery)
red arrow

inferior meatus
the greater petrosal nerve is carrying what kind of fibers
presynaptic parasympathetic fibers from the facial nerve CN VII to synpase in the ptyergopalatine ganglion
red circle
what is on the other side?
what travels through?

sphenopalatine foramen
nasal cavity
sphenopalatine artery, nasopalatine nerve
pink arrow

infraorbital artery
infraorbital nerve
pink arrow

greater palatine arteries (where it anastamosis with the sphenopalatine artery)