RA 2 Nasal Distortion Flashcards
The comparative size of the length of the nose to the width of the nose as indicated by its bony skeleton
THE NOSERACIAL CLASSIFICATION (OR INDEX)
– it is from root of nose to the base of nasal cavity
LENGTH
– looking at widest area of the nasal cavity
WIDTH
– classification given to the nose that is long, narrow and high bridged; common to Western European decent
LEPTORRHINE
– classification given to the nose that is medium broad and medium low bridged; predominant among people of Asian descent
MESORRHINE
– classification given to a nose that is short, broad, and has a minimum of projection; common to individuals of African descent
PLATYRRHINE
PROFILE CLASSIFICATIONSLooked at in reference to the Dorsum
STRAIGHT CONVEXCONCAVE
– Grecian, characterized as straight from tip to root. Most common profile
STRAIGHT
– Roman, aquiline or hooked curved, as the beak of an eagle, a nose that has a hook as seen from a profile, max exhibit a hump in the bridge (anywhere on anterior ridge)
CONVEX
– snub, pug, infantine or retrousse. Characterized by a dip in the bridge and turned up at the end. Anterior ridge “dips inward”
CONCAVE
– the paired nasal bones are inferior to glabella, forming a dome over the superior portion of nasal cavity
NASAL BONES
– the sharp bony projection located medially at the inferior margin of the nasal cavity. This indicates the bony length of nose.
NASAL SPINE OF THE MAXILLA
MAJOR CARTILAGE OF THE NOSE
- SEPTUM 2. SUPERIOR LATERAL CARTILAGE (two)3. INFERIOR LATERAL CARTILAGE (two)
– vertical cartilage dividing nasal cavity into two sections. Provide majority of projection of inferior point of the nose. As it enters depth of nasal cavity it attaches to the vomer bone, and also to the perpendicular plate of the ethmoid bone.
SEPTUM
– provides fullness to side of nose. Attached to nasal bone. Upper portion of each side.
SUPERIOR LATERAL CARTILAGE (two)