Male Reproductive Anatomy

In order to stay healthy and make informed decisions about your body, it is important that you know the parts of your body and its functions.


Anatomy for Male Sex

This image shows detailed male anatomy. Please do not click if you are not comfortable with your surroundings.
Description of Anatomy


Function: stores urine

Penis: The penis is an external organ of the male reproductive system and has 2 main functions. 


  1. Sexual intercourse: with sexual stimulation, blood flows to the penis and it undergoes erection (grows hard). Upon emission (ejaculation, "cumming"), semen comes out of the penis.

  2. Urination: the penis contains the urethra, which carrines urine from the bladder to the external urethral orifice, which is where urine comes out of the penis. 


Function: produces sperm and hormones. 

It is common for the left testicle to lie lower than the right testicle, and they can be of different sizes. Big size differences may indicate a health concern, so see a doctor if so. 


Function: Holds solid waste

Prostate: The prostate is the largest gland in the male reproductive system. 

Function: Produces a secretion that makes up a large portion of semen volume. Assists with sexual pleasure. 


Function: Exit place for solid waste

Scrotum: The scrotum is the loose pouch-like sac of skin that hangs behind the penis and that holds the testicles. 

Function: Holds the testicles as well as many nerves and blood vessels. Helps maintain temperature levels.  

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