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Embryonic development in the human, covers the first eight weeks of development; at the beginning of the ninth week the embryo is termed a fetus. The eight weeks have 23 stages. Human embryology is the study of this development during the first eight weeks after fertilization. The normal period of gestation (pregnancy) is about nine months or ...
Cephalic presentation. In obstetrics, a cephalic presentation or head presentation or head-first presentation is a situation at childbirth where the fetus is in a longitudinal lie and the head enters the pelvis first; the most common form of cephalic presentation is the vertex presentation, where the occiput is the leading part (the part that ...
The fetus reaches a length of about 40–48 cm (16–19 in). The fetus weighs about 2.5 to 3 kg (6 lb 10 oz)to 6 lb 12 oz). Lanugo begins to disappear. Body fat increases. Fingernails reach the end of the fingertips. A baby born at 36 weeks has a high chance of survival, but may require medical interventions. Fetus at 38 weeks after fertilization.
Coffin birth. Coffin birth, also known as postmortem fetal extrusion, [ 1][ 2] is the expulsion of a nonviable fetus through the vaginal opening of the decomposing body of a deceased pregnant woman due to increasing pressure from intra-abdominal gases. This kind of postmortem delivery occurs very rarely during the decomposition of a body.
A lithopedion. This highly unusual specimen remained in the abdomen of a woman for 2 years. A lithopedion ( also spelled lithopaedion or lithopædion; from Ancient Greek: λίθος "stone" and Ancient Greek: παιδίον "small child, infant"), or stone baby, is a rare phenomenon which occurs most commonly when a fetus dies during an ...
Pediatrics. Small for gestational age ( SGA) newborns are those who are smaller in size than normal for the gestational age. SGA is most commonly defined as a weight below the 10th percentile for the gestational age. [ 1 ] SGA predicts susceptibility to hypoglycemia, hypothermia, and polycythemia. [ 2 ] By definition, at least 10% of all ...
A Child Is Born. A Child Is Born (full title: A Child Is Born: The drama of life before birth in unprecedented photographs. A practical guide for the expectant mother; original Swedish title: Ett barn blir till) is a 1965 photographic book by Swedish photojournalist Lennart Nilsson. The book consists of photographs charting the development of ...
According to Dr. Nathan Sundgren, associate medical director of the neonatal intensive care unit (NICU) who treated the babies, the sisters are now all between 6.5 to 7 pounds, and "doing great."