In the center, we have a porous, flexible membrane on which we can add human cells from, say, our lungs, and then underneath, they had capillary cells, the cells in our blood vessels.
Uprostřed je porézní, pružná membrána, na kterou můžeme nanášet buňky třeba z našich plic a vespod jsou kapilární buňky odebrané z našich cév.