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The third trimester is defined as starting, between the beginning of week 28 (27 weeks + 0 days of GA) [37] or beginning of week 29 (28 weeks + 0 days of GA). [4] It lasts until childbirth . Timeline of pregnancy, including (from top to bottom): Trimesters, embryo/fetus development, gestational age in weeks and months, viability and maturity stages
An academic term (or simply term) is a portion of an academic year during which an educational institution holds classes.The schedules adopted vary widely. Common terms such as semester, trimester, and quarter are used to denote terms of specific durations.
Popularly called the fourth trimester of pregnancy, using a label coined by US pediatrician Harvey Karp in his book The Happiest Baby on the Block, the relative underdevelopment of human newborns compared to other primates is believed to be due to evolutionary pressures related to walking upright.
Trimester or Trimestre may refer to: Academic term , a trimester system divides the academic year into three terms Trimester (pregnancy) in humans, where the time of pregnancy is divided into three terms of 13 weeks to refer to the fetus's development
Mother with newborn baby. The postpartum (or postnatal) period begins after childbirth and is typically considered to last for six to eight weeks. [1] There are three distinct phases of the postnatal period; the acute phase, lasting for six to twelve hours after birth; the subacute phase, lasting six weeks; and the delayed phase, lasting up to six months.
This quarter system was adopted by the oldest universities in the English-speaking world (Oxford, founded circa 1096, [1] and Cambridge, founded circa 1209 [2]). Over time, Cambridge dropped Trinity Term and renamed Hilary Term to Lent Term, and Oxford also dropped the original Trinity Term and renamed Easter Term as Trinity Term, thus establishing the three-term academic "quarter" year widely ...
However, the word trimester derived from latin litarally means THREE months (tri-mestris). I have never really understood why they use it in a way which seems not to be in line with its latin meaning (supposing that an acadmic either knows latin language or would at least do some study before using such a term).
The mean pregnancy length has been estimated to be 283.4 days of gestational age as timed from the first day of the last menstrual period and 280.6 days when retrospectively estimated by obstetric ultrasound measurement of the fetal biparietal diameter (BPD) in the second trimester. [12]