Image gives viewers an idea of how the human male reproductive organs look. The bag-like organ is called the scrotum and contains two testicles, one in each side of a fleshy muscular bag. From outside a line/raphe can be seen as an external division of the scrotum and it is called the perineal raphe. The testicles are organs which produce sperm in males. The pipe-like organ above the scrotum is called the penis and it is the copulatory organ.