MMedical Dictionary Masseter Muscle Masseter Muscle A muscle whose action is closing the jaws. Masseter Muscle was last modified: June 24th, 2016 by explainingmedicine Related muscle 0 comment 0 Facebook Twitter Google + Pinterest explainingmedicine previous post Male Breast Cancer: Treatments next post Mastication (see Chewing) Related Articles Hepatitis B: Treatments June 13, 2016 Acute Pancreatitis: Symptoms June 13, 2016 Myelodysplastic Syndromes: Treatments June 13, 2016 Rh Incompatibility: Tests June 13, 2016 Pitavastatin (By mouth) June 21, 2016 Pioglitazone (By mouth) June 21, 2016 Plaquenil (see Hydroxychloroquine (By mouth)) June 21, 2016 Piperonyl Butoxide/Pyrethrum Extract (On the skin) June 21, 2016 Adult Primary Liver Cancer: Tests June 13, 2016 Nevus (see Mole) June 13, 2016