A dairy product made by fermented milk with one or more bacterial cultures. It has been used to repopulate the normal bacterial flora of the intestines after antibiotic therapy and associated diarrhea and for treating and preventing vaginal yeast and bacterial infections.
- Yolk sac
Not all yolk has to do with birds’ eggs. Human embryos have a yolk sac, too. The human yolk sac is a membrane outside the embryo that is connected by a tube (the yolk stalk) though the umbilical opening to the embryo’s midgut. The yolk sac serves as an early site for the formation of […]
- Yolk stalk
most commonly as a finger-like protrusion from the small intestine known as Meckelis diverticulum. Found in 2 to 4 percent of people, Meckelis diverticulum may become inflamed (much like the appendix) and require surgical removal. Also known as the omphalomesenteric duct, umbilical duct, or vitelline duct.
The time between childhood and maturity.
- Youth violence
Violence involving young persons, typically children, adolescents, and young adults between the ages of 10 and 24. The young person can be the victim, the perpetrator, or both. Youth violence includes aggressive behaviors such as verbal abuse, bullying, hitting, slapping, or fistfighting. These behaviors have significant consequences but do not generally result in serious injury […]
A rare elemental metal. A radioactive form of yttrium is used in radiation therapy and some types of immunotherapy.