tarsal depressor muscle mesothoracic depressor muscle mesothoracic tarsal depressor muscle 74 2022-07-05T13:30:44Z FBbt:00058930 Depressor muscle of the adult mesothoracic tarsus that extends along the tibia, medial to the tarsal levator muscle 73. It is composed of 28 to 33 fibers (Soler et al., 2004). fly_anatomy.ontology