TY - JOUR A1 - , T1 - Anatomy of the lateral pterygoid muscle and its relationship with temporomandibular disorders. A literature review JO - Eur. J. Anat. SN - 1136-4890 Y1 - 2020 VL - 24 SP - 249 EP - 256 UR - http://www.eurjanat.com/web/paper.php?id=190568jv KW - Anatomical sciences Lateral ptery-goid muscle Temporomandibular joint Tem-poromandibular dysfunction Human body N2 - The lateral pterygoid muscle is a chewing muscle that is found bilaterally in the cranial region. Ana-tomically, the lateral pterygoid muscle is made up of two bellies, an upper belly and a lower belly. Its anatomical description present in the scientific lit-erature showed that there is an anatomical differ-ence or variation, mainly the insertions of the up-per belly of the lateral pterygoid muscle at the level of the temporomandibular joint, and specifically in the disc and articular condyle, although distribu-tions are reported similarly. They are not entirely accurate in smaller quantities: some articles re-ported variations in the insertion of the lower belly and others the appearance of a third belly of the lateral pterygoid muscle or medial belly. As men-tioned above, a high number of studies that pre-sented some type of lateral pterygoid muscle vari-ation was associated with some type of temporo-mandibular disorders of the joint or some of its in-tra or extra-articular components. A review of the literature in scientific databases was carried out after the selection of the scientific articles, which were analyzed in full text, and the relationship be-tween the anatomy of the lateral pterygoid muscleand the temporomandibular disorders was sought. ER -