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  2. Sex differences in human physiology - Wikipedia

    en.wikipedia.org/wiki/Sex_differences_in_human...

    The pelvis is, in general, different between the human female and male skeleton. [12] [13] Although variations exist and there may be a degree of overlap between typically male or female traits, [12] [13] the pelvis is the most dimorphic bone of the human skeleton and is therefore likely to be accurate when using it to ascertain a person's sex ...

  3. Body shape - Wikipedia

    en.wikipedia.org/wiki/Body_shape

    Hourglass shape: The female body is significantly narrower in the waist both in front view and profile view. The waist is narrower than the chest region due to the breasts, and narrower than the hip region due to the width of the buttocks, which results in an hourglass figure. Apple: The stomach region is wider than the hip section, mainly in ...

  4. Breast - Wikipedia

    en.wikipedia.org/wiki/Breast

    Male breasts are sometimes referred to in the singular to mean the collective upper chest area, [a] whereas female breasts are referred to in the plural unless speaking of a specific left or right breast. A large number of colloquial terms for female breasts are used in English, ranging from fairly polite terms to vulgar or slang.

  5. Sternum - Wikipedia

    en.wikipedia.org/wiki/Sternum

    It is slightly convex in front and concave behind; broad above, shaped like a "T", becoming narrowed at the point where the manubrium joins the body, after which it again widens a little to below the middle of the body, and then narrows to its lower extremity. In adults the sternum is on average about 1.7 cm longer in the male than in the female.

  6. Body proportions - Wikipedia

    en.wikipedia.org/wiki/Body_proportions

    On this (latter) metric, the most attractive ratio of leg to body for men (as seen by American women) is 1:1, [12] matching the 'four heads:four heads' ratio above. A Japanese study using the former metric found the same result for male attractiveness but women with longer legs than body were judged to be more attractive. [13]

  7. Sexual differentiation in humans - Wikipedia

    en.wikipedia.org/wiki/Sexual_differentiation_in...

    The internal genitalia consist of two accessory ducts: mesonephric ducts (male) and paramesonephric ducts (female). The mesonephric system is the precursor to the male genitalia and the paramesonephric to the female reproductive system. [8] As development proceeds, one of the pairs of ducts develops while the other regresses.

  8. Chest hair - Wikipedia

    en.wikipedia.org/wiki/Chest_hair

    The individual occurrence and characteristics of chest hair depend on the genetic disposition, the hormonal status and the age of the person. The genes primarily determine the amount, patterns and thickness of chest hair. Some men are very hairy, while others have no chest hair at all. All ranges and patterns of hair growth are normal.

  9. Female body shape - Wikipedia

    en.wikipedia.org/wiki/Female_body_shape

    The breasts of girls and women in early stages of development commonly are "high" and rounded, dome- or cone-shaped, and protrude almost horizontally from a female's chest wall. Over time, the sag on breasts tends to increase due to their natural weight, the relaxation of support structures, and aging.