The male reproductive system primarily consists of the paired testes and the penis. In addition accessory sex glands contribute to seminal fluid. The male reproductive system matures during adolescence and remains active for the remainder of the lifespan of the male. The male reproductive system has external and internal parts.
An anatomical diagram depicting a cutaway of the torso of a human male, illustrating the gastrointestinal and reproductive systems. The human body with superimposed colored plates, by Julien Bougle, circa 1899.
Reproduction is the process in which organisms generate new life either sexually or asexually, giving rise to an offspring and propagating their species. Humans are an example of species that reproduce sexually through the use of both male and female reproductive systems. Both reproductive systems are vital to produce sex cells called gametes.