3D, ANATOMICAL, ANATOMY, ARTWORK, BACKGROUND, BIOLOGICAL, BIOLOGY, BODY, DIMENSIONAL, ERECTOR, FEMORIS, GLUTEUS, GRAPHIC, HAMSTRINGS, HEALTHY, HUMAN, ILLUSTRATION, KAULITZKI, LIGAMENTS, LONGISSIMUS, MALE, MAN, MUSCLE, MUSCULAR, NO-ONE, NOBODY, NORMAL, ORGAN, PHYSIOLOGY, POSTERIOR, PSOAS, SEBASTIAN, SPINAE, STRENGTH, THIGH, THREE, WHITE,