<prompt> All of the following are Digastric muscles, except?Muscle fibers in the ligament of TreitzOmohyoidOccipitofrontalisSternocleidomastoid  <response>: Digastric muscles refers to muscles with two bellies. Sternocleidomastoid has two heads but it does not have two bellies and hence this muscle cannot be termed as a digastric muscle. 