Head and neck final: Nose, nasal cavity and paranasal sinuses Flashcards
The nasal cavity divided into right and left by the ___
nasal septum
Nasal cavity has the anterior openings called ___
nares
Choanae (posterior nasal apertures) are located ___, communicate with the ___
posteriorly
nasopharynx
Roof of nasal cavity is formed by the __(4)__ bones
nasal
frontal
ethmoid
sphenoid
Medial wall of nasal cavity is the nasal septum formed by the __(3)__
Septal cartilage
perpendicular plate of ethmoid
vomer
Lateral wall of nasal cavity is formed by ___
the 3 nasal conchae
Meatuses are the grooves below each ___, superior, middle and inferior meatuses
conchae
Conchae are superior, middle and inferior, divide the nasal cavity into ___ passages
4
___ lies superior to superior concha, receives the opening of sphenoidal sinus
Sphenoethmoidal recess
Superior meatus, receives the opening of ___ sinus
posterior ethmoidal
Ethmoidal infundibulum, funnel - shaped opening, communicates with the ___
frontal sinus
___ is a groove into which the frontal sinus opens
Semilunar hiatus
___ is a rounded elevation formed by the middle ethmoidal sinus
Ethmoidal Bulla
___ opens into the posterior end of the semilunar hiatus
Maxillary sinus
___ are the air - filled extensions of the respiratory part of the nasal cavity, lighten the skull and add resonance to voice
Paranasal sinuses
Frontal sinuses are located posterior to the ___
Superciliary arches
___ are located in the lateral mass of the ethmoid bone
Ethmoidal sinuses
Anterior ethmoidal cells drain into the ___
middle meatus
____ cells directly drain into the middle meatus, because they form the ethmoidal bulla
Middle ethmoidal
___ cells open directly into the superior meatus
Posterior Ethmoidal
___ sinuses are in the body of the sphenoid bone, separated by a bony septum
Sphenoidal
Relations of the sphenoidal sinus are the __(5)__
Optic N Optic Chiasma Pituitary Gland Internal Carotid A Cavernous SInus
The sphenoidal sinuses open separately into the ___ sinus
sphenoethmoidal
___ sinuses are the largest of the paranasal sinuses, occupy the bodies of the maxillae
Maxillary