Ancestry Flashcards
Nasal Bone Contour (African)
Low and rounded (Quonset)
Nasal Bone Contour (Asian)
Oval contour with elongation superior-inferiorly, projecting anteriorly from mid-face
Nasal Bone Contour (European)
Tented, steep lateral walls, flat superior plateau
Semi triangular vaulted, steep sided lateral walls and narrow superior surface plateau
Steepled, triangular cross section, lacking superior plateau
Nasal Aperture Width (European)
Narrow (long)
Nasal Aperture Width (Asian)
Medium (rounded)
Nasal Aperture Width (African)
Wide
Anterior Nasal Spine (African)
Short (rounded), no projection fro the nasal ridge
Anterior Nasal Spine (Asian)
Medium (projects to the level of prosthion viewed from the side but does not reach it)
Anterior Nasal Spine (European)
Long (sharp)
Terminated beyond prosthion
Usually has a sharp anterior projection
Inferior Nasal Margin (African)
Guttered; gradually sloping of nasal floor from posterior to anterior
Incipient guttering (sloping commences more anteriorly, but is less than 1)
Inferior Nasal Margin (Asian)
Straight (immediate transition from nasal floor to vertical maxilla)
Inferior Nasal Margin (European)
Partial sill (weak but present ridge of vertical bone)
sill pronounce ridge no smooth transition fro nasal floor to maxilla
Nasal overgrowth (Eur/Afr)
Absent (border of nasal bones does not project beyond the maxilla
Nasal overgrowth (Asian)
Present (border of nasal bones projects beyond the maxilla)
Zygomatic Projection (Eur/Afr)
Retreating (zygomata more backwards relative to opening of nasal aperture in the vertical plane)