Ch 16 Nasal Cavity Flashcards
Parts of external nose (5)
ADARN
apex
dorsum
ala
root
nares or nostrils
The _ is the tip of the nose.
apex
The _ is the base of the nose where it attaches to the face
root
The nose attaches to the face at the _.
root
The dorsum is the _ aspect of the nose covered in skin
superior
The top part of the dorsum of the nose is called the _ .
bridge
True or false: the inferior part of the internal nose contains 2 openings called nostrils or nares
FALSE, not internal nose
EXTERNAL nose
True or false: the term for the lateral skin on each side of the nose is called the bridge
FALSE, not the bridge
ALA
The upper half of the external nose is composed of skin and muscle termed _ that is covering the nasal _
Procerus, nasal bone
The lower half of the external nose is composed of skin and muscle termed _ that is covering _
Nasalis, cartilage
Cartilage of the external nose (4 type):
-septal cartilage
-lateral expansion of the septal cartilage
-greater alar cartilage
-possibly several smaller cartilages
The greater alar cartilage bends and forms the medial and lateral _ of the _ inside the nares and the _ outside the nares.
walls, vestibule, walls
Skin right inside the nares contains (2 items):
-sebaceous glands
-hairs
The vestibule of the inner nare is limited above by a curved elevation called the _ _.
limen nasi
The limen nasi is a ridge formed by the _ expansion of _ cartilage in the nose.
lateral, septal
The mucous membrane of the nasal cavity goes thru the _ _ above the vestibule in the inner nares.
limen nasi
The part of the nasal cavity right above the limen nasi is the _.
atrium
The nasal cavity sits _ to the cranial cavity and sits _ to the oral cavity.
inferior, superior
The nasal cavity is divided into 2 symmetrical chambers called the right and left nasal cavities by the _ nasal _.
mediAN nasal septum
MEDIANNNN for NNNNOSE, not medial
The nasal cavity opens _ via the nares
anteiorly
The nasal cavity opens to the _ posteriorly via the _.
nasopharynx, choANAe
The choANA of the nasal cavity is a bony aPERTure formed posteriorly by the: (4 items)
2 parts of sphenoid, 2 other bones
-vomer (medial)
-palatine bone (inferior)
-medial pterygoidal plate of sphenoid (laterally)
-body of sphenoid (superiorly)
The vomer forms the _ part of the choanae in the nasal cavity
medial
The palatine bone forms the _ part of the choanae in the nasal cavity.
inferior
The _ pterygoidal plate of the sphenoid forms the _ part of the choanae in the nasal cavity
medial, lateral
The body of the sphenoid forms the _ part of the choanae in the nasal cavity
superior
When a skull dries up and loses its cartilage it has a larger hole over where the nares were called the _ _.
piriform aPERTure
The piriform aperture is bounded by the _ bones superiorly, and the _ inferiorly and laterally.
nasal bones, maxilla
The superior boundary of the nasal cavity is AKA=
roof