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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.

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Vulva: External Anatomy for Female Sex

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

Mons pubis: A rounded mound of fatty tissue that covers the pubic bone and becomes covered with hair during puberty.


Labia majora (thicker “outer lips”): Two thicker external skin folds (usually covered in hair) that surround and protect the other external genital organs.

Labia minora (thinner "inner lips"): Two hairless folds of skin, which lie within the labia majora and surround the openings to the vagina and urethra; the labia come together in the middle to form the hood of the clitoris

Fun Fact

The blood vessels in the labia minora fill with blood during sexual stimulation and cause the labia to swell and become more sensitive.

Vestibule: The area surrounded by the labia minora which contains the openings of the vagina and urethra. 

  • Urethral Opening The opening where urine (pee) comes out. It connects to your bladder. 

  • Vaginal Opening - The opening where blood comes out and a penis goes inside during sex. See the vagina (vaginal canal) described above.


Clitoris: Located under the fold of skin called the clitoral hood. It is very sensitive to touch: stimulating the clitoris can result in an orgasm.

Bartholin’s glands: Located on both sides of the opening of the vagina, these glands release mucus during sexual arousal. The mucus acts as lube for sex. 

Hymen (pictured torn): A thin piece of tissue that surrounds the opening of the vagina. It is important to note that it naturally thins and tears over time. It typically develops an opening that allows for penetration long before the first time one has sex. Stretching or tearing the hymen as a result of any activity (sex, physical exercise) can hurt, but most people do not feel it happen.



The area between the opening of the vagina and the anus, below the labia majora. 


The opening at the far end of the digestive tract through which solid waste (poop) leaves the body.

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Internal Anatomy for XX "Female" Sex

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uterine cavity


uterus ("womb")
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Function: a thick muscular organ that can expand to accommodate a growing fetus (baby). It is connected to the vagina and fallopian tubes.

The uterus has three parts:

  1. Fundus – top of the uterus

  2. Uterine Cavity – where the fertilized egg buries into to become a baby

  3. Cervix – lower part of uterus that links it to the vagina. It is structurally and functionally different to the rest of the uterus. See cervix for more information.

Anatomy for XY "Male" Sex

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

Bladder: The bladder stores urine (pee). 

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 ejaculation (cumming), semen comes out of the penis. Then the penis becomes limp/flaccid again. 

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

Testicle: The testicles produce sperm and hormones. It is common for the left testicle to hang lower than the right testicle, and they can be of different sizes. Big size differences may indicate a health concern, so if you notice this, see a doctor. 

Rectum: The rectum holds solid waste (poop). 

Prostate: The prostate is the largest gland in the XY "male" reproductive system. It produces a liquid that makes up a large portion of semen volume. It helps with sexual pleasure. 

Anus: This is the hole where solid waste (poop) exits the body. 

Scrotum: The scrotum is the loose pouch-like sac of skin that hangs behind the penis and that holds the testicles. It holds the testicles as well as many nerves and blood vessels. It helps maintain temperature levels.  

Description of Anatomy

Related pages: 

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