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  2. Male reproductive system - Wikipedia

    en.wikipedia.org/wiki/Male_reproductive_system

    These organs are located on the outside of the body, and within the pelvis. The main male sex organs are the penis and the scrotum, which contains the testicles that produce semen and sperm, which, as part of sexual intercourse, fertilize an ovum in the female's body; the fertilized ovum develops into a fetus, which is later born as an infant.

  3. List of related male and female reproductive organs - Wikipedia

    en.wikipedia.org/wiki/List_of_related_male_and...

    This list of related male and female reproductive organs shows how the male and female reproductive organs and the development of the reproductive system are related, sharing a common developmental path. This makes them biological homologues. These organs differentiate into the respective sex organs in males and females.

  4. Is it a boy or girl? 24 old wives' tales about predicting a ...

    www.aol.com/news/boy-girl-24-old-wives-214126391...

    The only REAL ways to find out are scientific methods, like ultrasound (which can have a margin of error, especially if a boy is “shy” in the photos), amniocentesis, or non-invasive genetic ...

  5. Sexual differentiation in humans - Wikipedia

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

    In both males and females, the sex organs consist of two structures: the internal genitalia and the external genitalia. In males, the gonads are the testicles and in females, they are the ovaries. These are the organs that produce gametes (egg and sperm), the reproductive cells that will eventually meet to form the fertilized egg .

  6. Sex differences in human physiology - Wikipedia

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

    The human brain. Differences in male and female brain size are relative to body size. [83] Early research into the differences between male and female brains showed that male brains are, on average, larger than female brains. This research was frequently cited to support the assertion that women are less intelligent than men.

  7. Is it a boy or a girl? 24 old wives' tales about predicting a ...

    www.aol.com/news/signs-youre-having-boy-girl...

    The only REAL way to find out are scientific methods, like ultrasound (which can have a margin of error, especially if a boy is "shy" in the photos), amniocentesis, or non-invasive genetic testing ...

  8. Mechanics of human sexuality - Wikipedia

    en.wikipedia.org/wiki/Mechanics_of_human_sexuality

    Pioneering researchers studied the male and female genitals during coitus (penile-vaginal penetration) with ultrasound technology in 1992 [4] and magnetic resonance imaging (MRI) in 1999, mapping the anatomy of the activity and taking images illustrating the fit of male and female genitals. [5]

  9. Sex differences in humans - Wikipedia

    en.wikipedia.org/wiki/Sex_differences_in_humans

    Gender-based medicine, also called "gender medicine", is the field of medicine that studies the biological and physiological differences between the human sexes and how that affects differences in disease. Traditionally, medical research has mostly been conducted using the male body as the basis for clinical studies.

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