Coitus interruptus is the withdrawing of the penis from the vagina during sexual intercourse prior to ejaculation. Coitus interruptus has been used as a form of contraception since the earliest times and has a success rate reckoned to be between 70 and 90%. Research Coitus Interruptus
Budding yeasts are true fungi of the phylum Ascomycetes, class Hemiascomycetes. The true yeasts comprise the family Saccharomycetes, which has but one genusSaccharomyces, but includes at least ten species. The classification of yeasts is a specialized field using cell, ascospore, and colony characteristics for distinguishing genera, and physiological characteristics - particularly the ability to ferment individual sugars - to identify species. Yeasts are heterotrophic, lack chlorophyll, and are characterized by a wide dispersion of natural habitats. Common on plant leaves and flowers, yeasts are also found on the skin surfaces and in the intestinal tracts of warm-blooded animals, where they may live symbiotically or as parasites. In women, who are pregnant or taking antibiotics, an infection of the vagina and vulva caused by a yeast like fungus Candida albicans, is common. Yeasts are also found in soil and saltwater, where they contribute to the decomposition of plant and algal matter.
Yeasts multiply as single cells that divide by budding or direct division, or they may grow as simple irregular filaments. In sexual reproduction most yeasts form asci, which contain up to eight haploid ascospores. These ascospores may fuse with adjoining nuclei and multiply through vegetative division or, as with certain yeasts, fuse with other ascospores. The most well-known and commercially significant yeasts are the related species and strains of Saccharomyces cerevisiae. These organisms have long been utilized to ferment the sugars of rice, wheat, barley, and corn to produce alcoholic beverages and in the baking industry to expand, or raise, dough. Saccharomyces cerevisiae is commonly used as baker's yeast and for some types of fermentation. Yeast is often taken as a vitamin supplement because it is 50 percent protein and is a rich source of B vitamins, niacin, and folic acid. The yeast's function in baking is to ferment sugarspresent in the flour or added to the dough. This fermentation gives off carbon dioxide and ethanol. The carbon dioxide is trapped within tiny bubbles and results in the dough expanding, or rising. Research Yeast
Gabriello Fallopius was an Italian anatomist. He was born in 1523 at Modena and died in 1562. He discovered the ovarian tubes in the human female, named the vagina and placenta and investigated muscles in the head. Research Gabriello Fallopius
In Norse mythology, Gjalp was a daughter of Geirrod. She was stationed at the head-waters of the fast flowing river Vimur, with her menstraul blood gushing in such quantities that the river doubled its depth from one second to the next, the object being to drown Thor who was making his way to Geirrod's castle. However, Thor noticed what was happening and hurled a boulder which plugged Gjalp's vagina and stopped the flow. Research Gjalp
In Japanese mythology, Kagutsuchi is the spirit of fire, the god of destructive and purifying fire, and of summer heat. When he was born he scorched the vagina of his mother Izanami so badly that she died. His father cut him into five pieces, and as his blood hit the ground it became five mountain spirits. Just like fire he rekindled himself and settled on the peak of MountAtago. Research Kagutsuchi
The cervix uteri (cervix) is the neck of the womb. It is the part of the uterus that projects into the upper part of the vagina. It is a powerful ring of muscle which is closed at most times but is able to dilate widely during childbirth. Research Cervix uteri
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Research Coitus Interruptus
