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Biological aspects of sexuality

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...

Why men feel inadequate over penis size

Men’s sexual role (after impregnating women) is to protect the family. In an aggressive situation a man must be physically large and muscular to...

Men have typically led the research into sexuality

Sigmund Freud, the Austrian psychologist (1856 to 1939), was the first scientist of note to talk of female sexuality. Freud’s methods were based on...

Sexual responsiveness is a male characteristic

Male orgasm is not directly linked to reproduction, but ejaculation is required. The function of male orgasm is to trigger the ejaculation of sperm....

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...

How the male and female sexual roles differ

Primitive life, such as bacteria, reproduce asexually. But most animals and plants reproduce sexually. Offspring inherit genes from both parents. Even in plants, the...

Responsiveness varies between individuals

We have no conscious control over our responsiveness. Our ability to enjoy eroticism is an instinctive and subconscious response. Our responsiveness is a factor...