👉 Plastrums are the outer layer of a human penis. They are made up of skin, muscle, and blood vessels that cover the head of the penis. The plastrum is responsible for producing semen from an ejaculation.
👉 Plastrums are the outer layer of a human penis. They are made up of skin, muscle, and blood vessels that cover the head of the penis. The plastrum is responsible for producing semen from an ejaculation.
