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32 Cards in this Set
- Front
- Back
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What is the bridge of the nose formed from? |
nasal bones processes of frontal bone and maxillae |
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What is the midline nasal septum composed of? |
septal cartilage perpendicular plate of ethmoid bone vomer |
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What is a deviated septum? |
misalignment of midline structure |
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What is the crista gale? |
comes off of cribriform plate of the ethmoid bone |
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What provides sensory innervation to the nasal septum and lateral wall? |
olfactory n. CN V1 CN V2 |
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What gives innervation to the anterior nasal cavity? |
nasociliary n. |
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What nerve does V2 give off to provide sensory innervation? |
gives off nasopalatine n. (AKA sphenopalatine) that travels through foramen rotundum to pterygopalatine ganglion as a pathway |
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What is the function of mucosal cilia? |
sweep mucus back through nasal cavity to be swallowed |
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What makes the roof of the nasal cavity? |
nasal bone frontal bone ethmoid bone sphenoid bone all have sinuses draining into nasal cavity |
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What forms the floor of the nasal cavity? |
palatine process of the maxilla horizontal plate of palatine bone |
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What do the bones of the floor of the nasal cavity also form? |
hard palate |
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What does inflammation of the mucosa of the nasal cavity lead to? |
pain and trouble breathing |
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What gives innervation to the posterior nasal cavity? |
greater palatine n. |
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What are the paranasal sinuses? |
mucosa lined cavities in the skull that drain into the nasal cavity proper |
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What are the paranasal sinuses? |
sphenoid sinus sphenoethmoidal sinus - above superior choncha ethmoidal bulla - part of superior meatus hiatus semilunaris - part of middle meatus inferior meatus |
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What does the inferior meatus drain? |
drainage for nasolacrimal duct - tears from conjuctival sac to nasal cavity |
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What does the middle meatus drain? |
maxillary sinus frontal sinus ant. ethmoidal air cells |
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What is the ethmoidal bullae? |
protrusion of ethmoidal air cells |
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What is the crack called that the middle meatus drains into? |
hiatus semilunaris |
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What empties into the superior meatus? |
posterior ethmoidal air cells |
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What is in the sphenoethmoidal sinus? |
sphenoid sinus drains here location of CN I |
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Why are paranasal sinuses important? |
create more surface area for mucous lighten skull resonance for voice moisten, lubricate and warm air we are enhaling |
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What is the pathway of tears? |
tears sweep from superior-lateral to posterior-medial and empty into puncta enter lacrimal sac and nasolacrimal duct empty into inferior meatus to be swallowed |
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What are another name for peripheral process of the olfactory n? |
filla olfactoria |
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What nerves from V2 pass through maxillary sinus? |
superior alveolar |
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What might a sinus infection also cause? |
pain in the upper teeth due to superior alveolar n. being in maxillary sinus |
