1. Independent unit "organ on an integrated circuit" (1), comprising: (A) at least one reservoir for feeding the medium (2) and! (B) at least one organ growth section (3) comprising at least one organ cavity (4, 4a, 4b) and! wherein the reservoir for supplying the medium (2) is connected at least one organ growth section (3) through a microfluidic feed channel (6) and the at least one organ cavity (4, 4a, 4b). ! 2. Autonomous apparatus body on an integrated circuit "(1) according to claim 1 wherein the organ growth section (3) comprises a stem cell cavity (9). ! 3. Autonomous apparatus body on an integrated circuit "(1) according to claim 1, further comprising at least one tank for discharge of the medium (5), wherein at least one organ cavity (4, 4a, 4b) connected the at least one reservoir for discharge of the medium (5) by a microfluidic discharge channel (7). ! 4. Autonomous apparatus body on an integrated circuit "(1) according to claim 1, wherein at least one sensor (8, 8a, 8b) located between at least one organ cavity (4, 4a, 4b ) and at least one tank for discharge of the medium (5) and / or within the at least one organ cavity. ! 5. Autonomous apparatus body on an integrated circuit "(1) according to claim 2, wherein the stem cell cavity (9) has a diameter less than 100 microns. ! 6. Autonomous apparatus body on an integrated circuit "(1) according to claim 2, wherein the stem cell cavity (9) has a cylindrical shape. ! 7. A standalone unit "organ pas integrated circuit" (1) according to claim 2, wherein the cavity for the stem cells of the liquid connected to at least one organ cavity (4, 4a, 4b) opening having a diameter of less than 80 m
