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What did Theodor Schwann have to do with cells? Theador Schwann is the physiologist that discovered cells now called schwann cells. These are the cells that produce myelin sheets that wrap around the axons of of neurones. Tâ¦his creates the myelin sheeth which speeds up the conduction of action potentials. These cells exist only in the periphery but there are similar cells in the CNS.
Thus, Schleiden and Schwann became the first to formulate what was then an informal belief as a principle of biology equal in importance to the atomic theory of chemistry. He also recognized the importance of the cell nucleus, discovered in 1831 by the Scottish botanist Robert Brown, and sensed its connection with cell division.