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Sexual Anatomy and Physiology
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Key Sexual Organs for Both Men and Women

The brain

The brainThe most important sexual organ is the brain. The brain controls all of our sexual responses, releases sex hormones, and gives us the ability to create sexual fantasies. In our minds, we can recall or create sexual experiences that may generate erotically stimulating sensations in our bodies. Fantasy can allow us to experience thoughts and feelings that we may not want to or be able to live out in reality and can provide safe sexual fulfillment.

The skin

The skin The largest sexual organ is the skin. The skin is woven with an intricate system of nerves that are responsive to changes in temperature, touch, and texture. High concentrations of nerves in the skin of particular body areas make these areas very sensitive and responsive to stimulation, thus causing sexual arousal and pleasure. These areas are called erogenous zones. Erogenous zones are unique to each individual—any part of the body can be erogenous. Common areas identified as erogenous zones include the neck, earlobes, mouth, lips, nipples, genitalia, buttocks, inner thighs, anus, backs of knees, fingers, and toes.Male breasts

The breasts

For both women and men, the breasts may provide sexual pleasure. In both sexes, the nipples may be highly sensitive to stimulation. The main difference between female and male breasts is the amount of fatty tissue within the breast.

Female breastsFor women, the breasts provide optimal nourishment for infants. Also for women, the glandular composition of the breast is very sensitive to hormonal changes in the body consistent with the menstrual cycle. Consequently, a woman’s breasts may vary in sensitivity or tenderness from one part of the month to another, or from one cycle to another.

 

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