(via judejudith)
(via itzsowezee)
Leonardo Da Vinci theory was that, among other places, sperm came from the brain. The penis actually had two ducts according to him, one for sperm and one for a spiritual substance from the brain, that mixed with every ejaculation.
As for women he theorized that breast milk originated in the uterus.
This detail of a sketch illustrates his findings.
(Source: lickystickypickywe)
(Source: reasoningwithvampires)
(via fuckyeahfoxfriends)