When a boy enters the puberty, his testicles begin to grow and produce larger amounts of testosterone. Penis growth starts around age 13 and continues until 18 or so. During this process aparace pubic hair around the genital area. Begins mass production of sperm and semen, so the guy usually due to nocturnal dreams of a sexual nature. Also, most of them begin to masturbate. Changes in puberty and adolescence are, of course, not only physical but also psychological.
MALE GENITAL
Definition
male genitalia, also known as genital tract or reproductive system consists of a set of visible and invisible bodies also called external and internal.
physiology (function)
have male genitalia two main functions:
allows the arrival of the sperm or semen in the vagina, allowing the fertilization of the egg. Share the canal of the urethra with the urinary system, as part of the genitourinary system. CLASSIFICATION
bodies forming the male genitalia are often divided into:
internal genitalia: Located inside the body. Here we find:
Testicles Epididymis
Deferent
Seminal vesicles Prostate Urethra
external genitalia: Located in the area outside the body, visible to the naked eye. Penis
male genitalia, also known as genital tract or reproductive system consists of a set of visible and invisible bodies also called external and internal.
physiology (function)
have male genitalia two main functions:
allows the arrival of the sperm or semen in the vagina, allowing the fertilization of the egg. Share the canal of the urethra with the urinary system, as part of the genitourinary system. CLASSIFICATION
bodies forming the male genitalia are often divided into:
internal genitalia: Located inside the body. Here we find:
Testicles Epididymis
Deferent
Seminal vesicles Prostate Urethra
external genitalia: Located in the area outside the body, visible to the naked eye. Penis
Scrotum
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