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40 Cards in this Set

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how many paranasal sinuses are there?

They are located beside the ... cavity and all have openings into this cavity
4
nasal
how many nasal cavities are there and what is in the middle?
2
nasal septum
what are the 4 openings to the nasal cavity?
-anterior nares
-post. nares
-paranasal sinuses (4)
-nasolacrimal duct (tears draining from eye to nasal cavity)
what are anterior and posterior openings to the nasal cavity called?
choanae
how are the sinuses named?
for the bone that they lie in
the nasolacrimal duct opens into what?
inferior meatus
what are the 5 functions of the nasal cavity?
-olfaction (CN 1)
-respiration
-filtration of dust via nose hair
-warm and add moisture to air
-receive and eliminate secretions from nasolacrimal duct and paranasal sinuses
every sensation in the body goes to the thalamus except...
olfactory
the olfactory nerve (CN 1) is ... only
sensory only (smell)
the olfactory nerve (CN 1) is located around the ...
sphenoethmoidal recess (place where the sphenoid and ethmoid meet)
Olfactory nerves (20) --> cribiform plate of ethmoid --> synapse in olfactory bulb --> olfactory tract --> cerebrum (bypassing the ...)
thalamus
what is the space that is deep to or behind the conchae?
meatus
olfaction is located in the ... part of the nasal cavity
upper
if you lose some or all of your sense of smell after hitting the back of your head pretty hard, what injury could have occurred?
-not common
shearing or tearing of the olfactory nerves
the upper 1/3 of the nasal cavity deals with ...
olfactory (smell)
the lower 2/3 of the nasal cavity deals with ...
respiratory
the superior and middle conchae (turbinates) are located in the ... bone.

The inferior is located in a ... bone
ethmoid
separate
Is the opening of the internal auditory (pharyngotympanic) canal located in the nasal cavity?
NO
where does the falx cerebri attach to?
crista galli
the nasal septum is rich in blood supply. It's 5 major arteries and origin are...
-anterior ethmoidal (opthalmic a.)
-posterior ethmoidal (opthalmic a.)
-sphenopalatine (maxillary a.)
-greater palatine (maxillary a.)
-branch of superior labial (facial a.)
the medical term for nosebleed is ...
epistaxis
the nasal septum innervation is ... only and provides ... (i.e. sneeze to keep foreign particles out of respiratory system)
sensory
reflexes
the 2 specific nerves and origins of the nasal septum are ...
-anterior ethmoidal (nasociliary of V1)
-nasopalatine (maxillary of V2)
what are the 4 paranasal sinuses?
frontal, maxillary, ethmoid, sphenoid
the paranasal sinuses are
-...-filled
-all drain into the ... cavity
-lined by a ... membrane
air
nasal
mucous
the sphenoid sinus empties into the ... recess
sphenoethmoidal
which sinus is this?
-largest
-lined with a mucous membrane (epithelium on connective tissue, many glands-mucous, subject to inflammation: sinusitis)
-small opening into middle meatus for drainage
maxillary sinus
when the maxillary sinus becomes inflamed, the ..., the drainage pathway between the sinus and the nasal cavity, swells and closes
ostium
which sinus is this?
-very thin walls
-crucial, central location
-sella turcica ("turkish saddle")
sphenoid sinus
sella turcica is associated with
-...bone
-... for pituitary gland
-sphenoid
-hypophyseal fossa (hypophysis)
if you get a tumor that presses on the optic chiasm, you could develop ... vision
tunnel
the lateral field of vision crosses to the medial side of the retina and it's fibers ... as it travels back to the visual cortex
cross
the medial field of vision crosses to the lateral side of the retina and its fibers ... as it travels back to the visual cortex
do not cross
The terminal branches of the basilar artery are the ...
posterior cerebral arteries
in what space do you find fat and the internal venous plexus?
epidural space
what connects the 3rd ventricle to the 4th ventricle?
cerebral aqueduct
which sinus is the common site of sinusitis?
maxillary sinus
the maxillary sinus has poor graviational ... because the ostium of the sinus is situated on the superior part of the medial wall of the sinus.
drainage
olfactory deficits may be caused by a fracture of the ..., which damages the primary olfactory neurons
cribiform plate
epistaxis, or bleeding from the nose, usually results from a ... of the arteries of Kiesselbach's plexus.
laceration