The fifth and final step to finding out what it takes to 3D bio print an actual brain was to write a short paper on what I researched. I have found that there are at least four necessary steps that go towards 3D bio printing a brain – or any other body part for that matter. The first step is that depending on what body part (for me, it is the brain), cells need to be taken from that body part, isolated and those cells have to be made to grow. The next step requires that those isolated and grown cells need to be multiplied so that there can be something to put together. Afterwards, it is necessary to use those multiplied cells to assemble muscle units which means creating the parts that are needed for the 3D bio printed structure. The last step is that those assembled muscle units need to be combined into an actual structure through the printing process.