Term
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Definition
–Begins at conception when the genetic sex is determined by the union of an ovum and sperm
–Prenatal development of the reproductive organs is similar for both males and females.
–If the critical part of the Y chromosome is not present at conception, female reproductive structures will develop. |
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Term
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Definition
–Puberty is a time when the reproductive organs become fully functional and secondary sex characteristics develop.
–Puberty begins about 6 months to 1 year earlier in girls than boys.
Girls are generally shorter because they begin their growth spurt at an earlier age and complete it more quickly than boys.
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Term
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Definition
–Girls often do not ovulate in early menstrual cycles.
–At birth a girl has all the ova she will ever have.
–The anterior pituitary gland, ovaries, and uterine endometrium prepare for the fertilized ovum.
–Breast size is unrelated to glandular tissue or to the quantity or quality of milk the woman can produce after childbirth. |
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Term
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Definition
–Onset of puberty is more subtle in boys and begins with growth of the testes and penis.
–Nocturnal emission of seminal fluids may be distressing to boys, unless they are prepared for this normal event.
–For sperm to form, a man’s testes must be cooler than his core body temperature.
–Seminal fluids nourish and protect the sperm and enhance their motility. |
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Term
| Exeternal Reproductive Structures |
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Definition
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Term
| Internal Female Reproductive Structures |
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Definition
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