masseter: zygomatic arch ---> ramus of mandible
temporalis : temporal fossa+ inf. temporal line ---> coronoid process
buccinator: pterygomandibular raphe+ maxilary+ mandible---> orbicularis oris
risorius: fascia over masseter --->skin at the angle of mouth
4.下列何肌之起始點在顴骨(zygomatic bone)? (A)咬肌(Ma..-阿摩線上測驗