1- L’APARELL CIRCULATORI
[youtube]https://www.youtube.com/watch?v=uTxGH2NmWGY[/youtube]
[youtube]https://www.youtube.com/watch?v=_1PeMWKhUPw[/youtube]
[youtube]https://www.youtube.com/watch?v=ypfzZLJmLWo[/youtube]
2- L’APARELL EXCRETOR
[youtube]https://www.youtube.com/watch?v=NE7oXe-twsU[/youtube]
[youtube]https://www.youtube.com/watch?v=f6rJ83TRm_g[/youtube]