Clinical Anatomy Of NOSE Flashcards
Bones(3) and cartilages(3+1) of external nose
Frontal process of maxilla
Nasal process of frontal bone
2 nasal bones
PAIRED :-
Sesimoid cartilage
Upper lateral cartilage
Lower lateral cartilage (alar cartilage -u shaped)
UNPAIRED CARTILAGE:-
nasal septum
Upper ⅓ bony
Lower ⅔ cartilage
Intersection area’s of nose (3)
NASION :- B/W frontal bone and nasal bones
RHINION :- B/W nasal bone and upper lateral cartilage
Limen nasi :- B/W upper lateral and lower lateral cartilages
Nasolacrimal duct
Inferior meatis
What are the sinus that opens into middle meatus(3)
Maxillary sinus
Frontal sinus
Anterior ethmoidal sinus
Dacryocystorhinostomy
Posterior ethmoid sinus opens into _____________
Superior meatus
Sphenoid sinus opens into ______________
Sphenoethmoidal recess
what is Another name for Posterior nasal apertures?
Posterior choana
what are the structures developed from nasal pit?
nasal Pic grows medially to form Nasal cavity, & deepens further to form primitive nasopharnx,
what are the structures developed from Stomatodaem?
stomatodaem grows medially to form oral cavity, which deepens further to form Primitive oropharnx
what is bocconasal membrane?
A membrane that separates Primitive oropharnx from Primitive nasopharnx
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which disappears by the time of Birth
what is choanal atresia & mention its types?
persistence of Bucconasal membrane
it can be unilateral or Bilateral
complete (or) Incomplete
Bony ( ) membranous (or) mixed
70% of choanal atersia cases are mixed
30% Pure Bony
membranous are seen rarly
How to confrim choanal atersia?
naso gastric tube passed though the nose If it reaches mouth
-No choanal atresia
If Not reaches choanal atresia is present
up to what age Infants are obligate nasal breathers?
4 to 5 months
How would the Infant with Bilateral Choanal atresia will present?
Cyclic Cynosis that relives on crying
Respiratory distress
what is Mc Governs technique?
. It is an immediate management technique for Bilateral choanal atresia in Infants
-A feeding hipple is taken bore of the hipple s made wider and inserted into infants mouth to keep mouth open which allow baby to breath.
who Investigation of choice in Bilateral choanal atresia?
computerised tomogram
what is the definitive management for the choanal atresia?
Excision & mitomycin (to prevent Synechiae formation)
CHARGE Syndrome
Coloboma / Cranial nerve abnormalities
Heart defects
Atresia of choana
Retarded growth
Genito urinary system defects.
Ear abnormalites
what Instrument is used to perform Anterior Rhinoscopy?
thudicum speculum
what are structures present internal to Limen nasi?
Interior turbinate
Internal nasal value area (narrowest part of nasal cavity with angle 10 to 15)
what are the Boundaries of Internal nasal valve area?
Lateral boundary: Limen nasi & inferior turbinate
medial boundary : septum
inferiorly-floor of nose
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external opening of nose is external nasal valve,
what is Cottles test?
it is used to test patency of nasal value
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Patient is asked Pull check upward Laterally, thus creating space in the nasal valve area
symptoms will be relived, if they are due to further narrowing of nasal valve area
crooked nose deformity
dorsum is deformed to form C or S-shape
But tip is in midline
Deviated nose deformity
Both tip and nose are deviated to the same side
