Anatomy & development

Men tend to focus on opportunities for regular sex

Men’s goal when engaging in sexual activity is simple. Men want to enjoy their own arousal by close contact with a lover’s body, enjoy...

Young men tend to focus on enjoying their arousal

Men are valued for their physical strength, their practical skills and their personal confidence (leadership). Men increase their muscle mass at puberty by 50%...

At puberty boys develop a reliable arousal cycle

From a young age, many boys already demonstrate a more active and outgoing personality than most girls. Boys enjoy physical activities such as sport...

The internal anatomy involved in reproduction

Our sex is determined by chromosomes. A man has an XY chromosome and a woman has an XX chromosome. There are other combinations (involving...

The female erectile sex organ (or phallus)

In the absence of testosterone, the genital tubercle forms the female phallus, called the clitoris. The clitoris consists of the glans and the internal...

The male erectile sex organ (or phallus)

A man’s sex organ (penis) is separate from his internal reproductive anatomy (testes and glands). The penis has three main functions. Firstly men use their...

Human sexual anatomy and development

Sexuality is about appreciating the human body and sexual anatomy. We should understand the function of the male and female genitalia as well as...