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22 Cards in this Set
- Front
- Back
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What is the nasal septum formed by?
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vomer, perpendicular plate of ethmoid and septal cartilage
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The nose has paired ______ and ______ cartilages
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alar, lateral
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The _________ divides nasal cavity into left and right nasal passages which are entered through _______ and exited through __________ into _________
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nasal septum, nares, choanae, nasopharynx
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What makes up the floor of the nasal cavity?
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palatine process of maxilla and horizontal plate of palatine
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What makes up the roof of the nasal cavity?
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nasal, frontal, ethmoid and sphenoid bones
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What makes up the lateral wall of the nasal cavity?
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maxilla, lacrimal, ethmoid, inferior nasal concha, perpendicular plate of palatine
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What are meati?
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air spaces under each nasal concha
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What is the innervation of the lateral wall of the nasal cavity?
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primarily via nasal branches of greater palatine (V2) and contributions from anterior ethmoidal (V1)
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What is the innervation of the septum?
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primarily nasopalatine (V2) and contributions from anterior ethmoidal (V1)
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What is the blood supply to the lateral wall and septum?
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- anterior and posterior ethmoidal, greater palatine and sphenopalatine
- nares also receive blood from superior labial and nasal branches of facial |
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What are paranasal sinuses?
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air-filled spaces in frontal, ethmoid, sphenoid, and maxilla lined by mucous membrane
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What makes up the ethmoid sinus?
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series of small air cells whereas other sinuses are larger spaces that vary in shape and size
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What makes up the maxillary sinus?
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has alveolar process of maxilla forming floor and thin orbital plate forming roof
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The superior meatus receives opening of what?
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posterior ethmoid air cells
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The middle meatus receives openings of what?
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frontal and maxillary sinuses, anterior and middle ethmoid air cells, through semilunar hiatus
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The inferior meatus receives opening of what?
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nasolacrimal duct
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The sphenoid sinus opens ____________ into _____________
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superior concha, sphenoethmoidal recess
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What is the posterior boundary of the pteryogopalatine fossa?
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pterygoid process of sphenoid
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What is the anterior boundary of the pterygopalatine fossa?
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posterior surface of maxilla
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What is the medial boundary of the pterygopalatine fossa?
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vertical plate of palatine
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What makes up the roof of the pterygopalatine fossa?
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infratemporal surface of sphenoid
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The pterygopalatine fossa lies _________ to the pterygomaxillary fissure and _________ to sphenopalatine foramen
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medial, lateral
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