Researchers offer new theory on 'Venus' figurines

One of world's earliest examples of art, the enigmatic 'Venus' figurines carved some 30,000 years ago, have intrigued and puzzled scientists for nearly two centuries. Now a researcher from the University of Colorado Anschutz ...

New species of the listeria genus discovered and baptised

It is estimated that only 1% of bacteria are pathogenic for humans or animals. Among them, the bacterial genus Listeria has been widely studied as it contains two species, Listeria monocytogenes and Listeria ivanovii, which ...

Stopping listeria reproduction 'in its tracks'

Listeria contaminations can send food processing facilities into full crisis mode with mass product recalls, federal warnings and even hospitalization or death for people who consume the contaminated products. Destroying ...

Air pollution shuts schools in Iran's capital

Schools in Tehran were ordered to be closed on Wednesday after the Iranian capital was cloaked in dangerously high levels of air pollution, authorities said.

page 1 from 7

Pregnancy

Pregnancy (latin graviditas) is the carrying of one or more offspring, known as a fetus or embryo, inside the uterus of a female. In a pregnancy, there can be multiple gestations, as in the case of twins or triplets. Human pregnancy is the most studied of all mammalian pregnancies. Obstetrics is the surgical field that studies and cares for high risk pregnancy. Midwifery is the non-surgical field that cares for pregnancy and pregnant women.

Childbirth usually occurs about 38 weeks after conception; i.e., approximately 40 weeks from the last normal menstrual period (LNMP) in humans. The World Health Organization defines normal term for delivery as between 37 weeks and 42 weeks. The calculation of this date involves the assumption of a regular 28-day period.

This text uses material from Wikipedia, licensed under CC BY-SA