LING 2P90 Lecture Notes - Lecture 11: Mandibular Symphysis, Outer Ear, Isthmus Of The Fauces
15 Jan 2016
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Condyle: hinges jaw to skull; forms part of temporomandibular joint) Combining all 3 will give you a chewing movement. *image of mandible: coronoid process, ramus, condyle, angle, body (textbook) Origin: temporal fossa of the skull-shallow depresson behind ear insertion: ramus and coronoid process of mandible. Diagram of lateral pterygoid muscle, medial pterygoid muscle } cranial nerve 5 trigeminal. Upper lip: cupid bow vermillion zone (transitional zone between skin and mucous membrane) Area on the lip that projects out: tubercle. The raised edge on each side of the philtrum that helps form the bow of the upper lip: columnella nasi. The nostrils are called nares (plural) nasi (singuar) Orbicularis oris muscle (concentric (circular) sphincter muscle-b/c able to close and pucker lips) Incisivus superioris and incisivus inferioris both of these work with other muscles around orbicularis oris to shape the mouth. Buccinator (trumpeters muscle): helps press upper and lower lip against your teeth; name related to buccal" in relation to the cheeks.
