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40 Cards in this Set
- Front
- Back
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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 |
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how many nasal cavities are there and what is in the middle?
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2
nasal septum |
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what are the 4 openings to the nasal cavity?
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-anterior nares
-post. nares -paranasal sinuses (4) -nasolacrimal duct (tears draining from eye to nasal cavity) |
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what are anterior and posterior openings to the nasal cavity called?
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choanae
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how are the sinuses named?
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for the bone that they lie in
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the nasolacrimal duct opens into what?
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inferior meatus
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what are the 5 functions of the nasal cavity?
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-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 |
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every sensation in the body goes to the thalamus except...
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olfactory
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the olfactory nerve (CN 1) is ... only
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sensory only (smell)
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the olfactory nerve (CN 1) is located around the ...
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sphenoethmoidal recess (place where the sphenoid and ethmoid meet)
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Olfactory nerves (20) --> cribiform plate of ethmoid --> synapse in olfactory bulb --> olfactory tract --> cerebrum (bypassing the ...)
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thalamus
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what is the space that is deep to or behind the conchae?
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meatus
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olfaction is located in the ... part of the nasal cavity
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upper
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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
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the upper 1/3 of the nasal cavity deals with ...
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olfactory (smell)
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the lower 2/3 of the nasal cavity deals with ...
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respiratory
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the superior and middle conchae (turbinates) are located in the ... bone.
The inferior is located in a ... bone |
ethmoid
separate |
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Is the opening of the internal auditory (pharyngotympanic) canal located in the nasal cavity?
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NO
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where does the falx cerebri attach to?
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crista galli
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the nasal septum is rich in blood supply. It's 5 major arteries and origin are...
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-anterior ethmoidal (opthalmic a.)
-posterior ethmoidal (opthalmic a.) -sphenopalatine (maxillary a.) -greater palatine (maxillary a.) -branch of superior labial (facial a.) |
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the medical term for nosebleed is ...
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epistaxis
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the nasal septum innervation is ... only and provides ... (i.e. sneeze to keep foreign particles out of respiratory system)
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sensory
reflexes |
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the 2 specific nerves and origins of the nasal septum are ...
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-anterior ethmoidal (nasociliary of V1)
-nasopalatine (maxillary of V2) |
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what are the 4 paranasal sinuses?
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frontal, maxillary, ethmoid, sphenoid
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the paranasal sinuses are
-...-filled -all drain into the ... cavity -lined by a ... membrane |
air
nasal mucous |
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the sphenoid sinus empties into the ... recess
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sphenoethmoidal
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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
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when the maxillary sinus becomes inflamed, the ..., the drainage pathway between the sinus and the nasal cavity, swells and closes
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ostium
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which sinus is this?
-very thin walls -crucial, central location -sella turcica ("turkish saddle") |
sphenoid sinus
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sella turcica is associated with
-...bone -... for pituitary gland |
-sphenoid
-hypophyseal fossa (hypophysis) |
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if you get a tumor that presses on the optic chiasm, you could develop ... vision
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tunnel
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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
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cross
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the medial field of vision crosses to the lateral side of the retina and its fibers ... as it travels back to the visual cortex
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do not cross
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The terminal branches of the basilar artery are the ...
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posterior cerebral arteries
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in what space do you find fat and the internal venous plexus?
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epidural space
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what connects the 3rd ventricle to the 4th ventricle?
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cerebral aqueduct
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which sinus is the common site of sinusitis?
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maxillary sinus
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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.
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drainage
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olfactory deficits may be caused by a fracture of the ..., which damages the primary olfactory neurons
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cribiform plate
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epistaxis, or bleeding from the nose, usually results from a ... of the arteries of Kiesselbach's plexus.
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laceration
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