Jae-Heon Kim, Hye-Jung Yoon, Soyeon Kim, Wanki Lee, Young-Seok Park
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The Digastric Muscle: Its Anatomy and Functions Revisited
As one of the suprahyoid muscles, the digastric muscle is characterized by two separate bellies of different embryologic origins. The origin of the anterior belly is the digastric fossa, while the origin of the posterior belly is the mastoid notch. They share a common insertion: the intermediate tendon. When the digastric muscle contracts, the hyoid bone is raised. Opening of the jaw and swallowing of food boli are associated with digastric muscle activity. This review discusses the general anatomic features of the digastric muscle and its variation, primary functions, and clinical implications focused on surgical reconstruction and rejuvenation.
期刊介绍:
The International Journal of Morphology (Revista Internacional de Morfología) (Print ISSN 0717-9367; Online ISSN 0717-9502) is an official publication of the Chilean Society of Anatomy, Argentine Association of Anatomy and Panamerican Association of Anatomy. It is the continuation of Revista Chilena de Anatomía (Chilean Anatomical Journal) and is published bimonthly. The six issues published yearly constitute one volume. This journal covers morphology in all its aspects, Gross Anatomy, Histology and Developmental Biology, as well as human and animals morphological aspects, including Celular, Molecular, systems or Evolutionary Biology. Reviews, short and brief communications and Letters to the Editor are also accepted.