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・ Angle Man
・ Angle modulation
・ Angle notation
・ Angle of arrival
・ Angle of attack
・ Angle of climb
・ Angle of Entry
・ Angle of His
・ Angle of incidence
・ Angle of list
・ Angle of loll
・ Angle of parallelism
・ Angle of Repose
・ Angle of repose
・ Angle of rotation
Angle of the mandible
・ Angle of the scapula
・ Angle of view
・ Angle Park, South Australia
・ Angle Peak
・ Angle Peninsula Coast
・ Angle plate
・ Angle Pole
・ Angle Ring
・ Angle School of Orthodontia
・ Angle seat piston valve
・ Angle shades
・ Angle Tarn
・ Angle Tarn (Langstrath)
・ Angle Tarn (Patterdale)


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Angle of the mandible : ウィキペディア英語版
Angle of the mandible

The angle of the mandible (gonial angle) is located at the posterior border at the junction of the lower border of the ramus of the mandible.
The angle of the mandible, which may be either inverted or everted, is marked by rough, oblique ridges on each side, for the attachment of the masseter laterally, and the pterygoideus internus medially; the stylomandibular ligament is attached to the angle between these muscles.
The forensic term for the midpoint of the mandibular angle is the gonion. The gonion is a cephalometric landmark located at the lowest, posterior, and lateral point on the angle.〔http://www.redwoods.edu/instruct/agarwin/anth_6_measurements.htm〕This site is at the apex of the maximum curvature of the mandible, where the ascending ramus becomes the body of the mandible.
The mandibular angle has been named as a forensic tool for gender determination, but recent studies have called into question whether there is any significant sex difference in humans in the angle.
==See also==

*Gonion
*Ohngren's line

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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