Keywords: Leonardo da vinci, studi anatomici 1509-1510.jpg File Leonardo da Vinci - Superficial anatomy of the shoulder and neck recto - Google Art Project jpg Artwork Creator Leonardo Da Vinci between 1509 1510 Pen ink paper size mm 292 198 Institution Royal Library Windsor object history credit line accession number WGA link 12825 http //www wga hu/art/l/leonardo/10anatom/3should2 jpg http //www wga hu/html/l/leonardo/10anatom/3should2 html PD-old-100 graphics study Italian 1451-1500 Anatomical studies by Leonardo da Vinci Nude males in drawings by Leonardo da Vinci Codex Windsor WGA form graphics WGA type study WGA School Italian WGA time period 1451-1500 Deltoid muscle Pectoralis major muscle Sternocleidomastoid muscles Clavicula |