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U of D mercy Anatomy
Nasal Cavity
60
Other
Graduate
10/11/2012

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Term
the tip of the nose
Definition
apex
Term
the base of the nose, where it attaches to the face
Definition
root
Term
the superior aspect of the nose, covered by skin
Definition
dorsum
Term
the upper part of the dorsum is called the _________ of the nose
Definition
bridge
Term
In the upper half of the external nose, the composition of skin and muscle is called ____________ ,which covers the nasal bone
Definition
procerus
Term
In the lower half of the external nose, the composition of skin and muscle is called_____________ covering cartilage.
Definition
nasalis
Term
the cartilages of the external nose are
Definition
septal cartilage
lateral expansion of septal cartilage
greater alar cartilage
and several smaller cartilages
Term
this cartilage of the external nose is bent so that it forms the medial and lateral walls of the nares
Definition
greater alar cartilage
Term
Just inside the nares is a space called this
Definition
the vestibule (aka where u pick your nose ha ha)
Term
the vestibule is bounded laterally and medially by the ______.
Definition
greater alar cartilage
Term
the vestibule is limited above by a curved elevation called_________
Definition
the limen nasi
Term
this is a ridge formed by the lateral expansion of septal cartilage
Definition
limen nasi
Term
It is at the point of the limen nasi that the skin of the vestibule gives way to the_____________ of the cavity
Definition
mucous membrane
Term
the part of the nasal cavity just above the limen nasi
Definition
atrium
Term
the nasal cavity is a space between the cranial cavity________and the oral cavity __________
Definition
superiorly; inferiorly
Term
Nasal cavity is divided by a median septum into two symmetrical chambers called
Definition
right and left nasal cavity
Term
nasal cavity is opened anteriorly via the___________
Definition
nares
Term
the nasal cavity is open to the nasopharynx posteriorly via the ____________
Definition
Choanae
Term
The choanae is a bony aperature formed posteriorly by 4 structures, name them
Definition
vomer-medially
palatine bone(inferiorly)
medial pterygoid plate of sphenoid(laterally)
body of sphenoid (superiorly)
Term
When the cartilages of the external nose are removed, the dried skull presents another bony aperture called
Definition
piriform aperture
Term
This structure is bounded by the nasal bones superiorly, the maxilla laterally and inferiorly
Definition
piriform aperture
Term
the superior boundary or roof of the nasal cavity is formed by four bones ( anterior to posterior)
Definition
nasal- frontal- ethmoid(cribriform plate)- sphenoid(body)
Term
The inferior boundary or the floor of the nasal cavity is formed by the ___________anteriorly and the ___________ posteriorly
Definition
maxilla; palatine bone
Term
what are the two bones that form the hard palate
Definition
maxilla and palatine
Term
the hard palate separates what two cavities
Definition
nasal and oral
Term
the lateral boundary of the nasal cavity is formed by seven bones
Definition
nasal, lacrimal, ethmoid, inferior nasal choncha, palatine, medial pterygoid plate of sphenoid, maxilla
Term
the lateral boundary of nasal cavity is characterized by the presence ___________
Definition
three conchae( superior, middle concha, inferior concha)
Term
In the nasal cavity this is a bone of its own, a separate bone
Definition
inferior concha
Term
the space inferior to each concha is termed a _________
Definition
meatus
Term
the superior meatus is the space just below ___________
Definition
superior concha
Term
the middle meatus is just below the _____________
Definition
middle concha
Term
the middle meatus contains an elevation or bulge of bone called the
Definition
ethmoid bulla
Term
the ethmoid bulla is bounded anteroinferiorly by a semilunar slit called
Definition
hiatus semilunaris
Term
the inferior meatus is just below the _____________
Definition
inferior concha
Term
the medial boundary of nasal cavity is composed of the
Definition
nasal septum
Term
the median partition separating the right and left nasal cavities
Definition
nasal septum
Term
the nasal septum is formed by these three structures
Definition
vomer( posterior and inferiorly)
perpendicular plate of ethmoid(superiorly)
septal cartilage(anteriorly)
Term
this is the mucous membrane in the upper third of the nasal septum and superior concha
Definition
olfactory region
Term
in this area the filaments of the olfactory nerve are distributed, mediating olfaction, or the sense of smell
Definition
olfactory region
Term
the lower two thirds of the mucous membrane of both the lateral and medial constitute this region
Definition
respiratory region
Term
this region of the mucous membrane functions in dust removal from inspired air, warming and humidifying incoming air
Definition
respiratory region
Term
this is a true cavity within the bone
Definition
sinus
Term
the sinus itself is lined with mucous membrane and will communicate with the nasal cavity via a canal or space termed
Definition
opening
Term
there are four types of paranasal sinuses, name them
Definition
maxillary, frontal, ethmoidal, and sphenoid sinuses
Term
this is the largest of all paranasal sinuses
Definition
maxillary sinus
Term
this sinus is located within the maxilla
Definition
maxillary sinus
Term
the maxillary sinus opens into the nasal cavity via the
Definition
middle meatus
Term
on each side this sinus is a single chamber, pyramidal in shape
Definition
maxillary sinus
Term
in this sinus the base is medial, apex is lateral, the floor is adjacent to upper teeth, can cause toothache
Definition
maxillary sinus
Term
this is a single sinus on each side of the head contained within the frontal bone in the supraorbital area
Definition
frontal sinus
Term
frontal sinus opens into what meatus?
Definition
middle meatus
Term
another name for ethmoidal sinus
Definition
labyrinthine
Term
this sinus consists of numerous air cells
Definition
ethmoidal sinus
Term
where is the ethmoidal sinus located
Definition
within the lateral mass of the ethmoid
Term
anterior ethmoid air cells open into the ________
Definition
middle meatus
Term
posterior ethmoid air cells open into
Definition
superior meatus
Term
this sinus is a single sinus on each side, both contained in body of the sphenoid
Definition
sphenoid sinus
Term
the sphenoid sinus opens into the ______________
Definition
sphenoethmoidal recess
Term
this is the area above the superior concha
Definition
sphenoethmoidal recess
Term
the nasolacrimal duct opens into the ____________
Definition
inferior meatus
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