Rodríguez-Vázquez JFMérida-Velasco JRSanz-Casado JVVerdugo López, SamuelCuadra Blanco, Crótida De La2024-01-312024-01-312009-04Rodríguez-Vázquez JF, Mérida-Velasco JR, Verdugo-López S, de la Cuadra-Blanco C, Sanz-Casado JV. Anatomical relationships of the cleidoatlanticus muscle. Interpretation about its origin. Anatomical Science International. 2009 Apr;84(1-2):47-52.10.1007/s12565-009-0018-1https://hdl.handle.net/20.500.14352/97412An unusual muscular variation, the cleidoatlanticus muscle, was observed on the right-hand side of the lateral cervical region. The upper third of the muscle was concealed by the sternocleidomastoid muscle. There was a loop of nerves surrounding the muscle, formed by an anastomosis between the transverse cervical nerve and the greater auricular nerve. A fine vascular-nervous pedicle (formed by a small branch from the transverse cervical artery and by a branch from the medial supraclavicular nerve) entered the deep surface of the muscle at the junction of its middle and lower thirds. Taking into account the relationships that presented with the superficial branches of the cervical plexus, we consider that the cleidoatlanticus muscle is derived from the sternocleidomastoid muscle.engAttribution-NonCommercial-NoDerivatives 4.0 Internationaljournal articlehttps://www.link.springer.com/article/10.1007/s12565-009-0018-119224329restricted access611.013Cleidoatlanticus muscleLevator claviculae muscleCleidocervical muscleHuman anatomical variationCiencias Biomédicas32 Ciencias Médicas