Various organs and tissues operate in unison within the male reproductive system. They are integral to human reproduction. A majority of the male reproductive system is outside of the pelvis and abdominal cavity. The exterior portions are responsible for reproduction, while the interior organs assist the process in various ways. The male reproductive system also produces the hormone testosterone, which assists in reproduction while also affecting fat distribution, red cell production, and muscle strength.
When a child’s body begins to mature, it undergoes many physical transformations. Puberty is the maturation of the body to become capable of reproduction. The brain sends hormonal signals to the reproductive glands, which then produce hormones responsible for many of the changes. Height and weight dramatically increase during the first portion of the puberty process. Males will end puberty with nearly twice as much skeletal muscle and significantly heavier bones. The male sex organs increase in size and activity. Hair growth begins in the armpits and continues to the arms, chest, and face. The larynx also grows, resulting in a lower pitched voice. Typically, males begin puberty around 11 years old and will complete it around 17 years old.
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