Which aery is palpated at the anterior border of masseter?
Superficial temporal
Occipital
Facial
External carotid
Masseter muscle covers the lateral surface of ramus of mandible which has three layers ORIGIN- Superficial layer: from anterior two third of zygomatic arch Deep layer: from deep surface of zygomatic arch Middle layer: from lower border of posterior one-third of zygomatic arch INSEION- Superficial fibers pass downwards and backward at 45 degree Deep fibers pass veically downwards Middle fibers pass or veically downwards NERVE SUPPLY- By masseteric nerve, a branch of anterior division of mandibular nerve ACTIONS- Elevates mandible to close the mouth to bite Superficial fibers cause protrusion Ref BDC volume 3,sixth edition pg 116
Head and neck