Reproductive System (The Amazing Human Body) by Lorrie Klosterman PDF

By Lorrie Klosterman

ISBN-10: 0761440410

ISBN-13: 9780761440413

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INFECTION It is normal to have certain kinds of harmless bacteria and yeast— which are a type of simple cell—on the skin. Sometimes they become Herpes simplex is a type of virus that can cause sexually transmitted disease (STD). 49 RE PRODUCTIVE SYSTE M Yeast (yellow) and other bacteria (blue) are normally found in and around the vagina. However, when the yeast and bacteria become too numerous, an infection may develop. 50 Problems with the Repro ductive System too plentiful and cause an itchy rash around the genitals.

These glands are located in the pelvis. Each seminal vesicle empties its contribution to semen into the nearest ductus deferens. The prostate empties its fluid into the urethra where the ductus deferentia enter it. Semen does more than help wash sperm along. It contains a sugar called fructose, which acts as a fuel that sperm use to keep moving. Semen also has substances that cause changes in the female reproductive tract. An example is prostaglandin, which is named for the prostate gland that makes it.

Semen does more than help wash sperm along. It contains a sugar called fructose, which acts as a fuel that sperm use to keep moving. Semen also has substances that cause changes in the female reproductive tract. An example is prostaglandin, which is named for the prostate gland that makes it. Prostaglandin causes muscles of the uterus and oviducts to tighten and relax rapidly, in a way that squeezes sperm up into the female system from the vagina. One more pair of male accessory glands is the bulbourethral glands.

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Reproductive System (The Amazing Human Body) by Lorrie Klosterman


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