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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.
The classic layman's term was coffin birth (though even that isn't well known anymore), but even Gould and Pyle (1896) refer to it mostly as "postmortem delivery" (which has come to mean a broader range of phenomena). In the most recent forensic sources, Schulz et al.(2005) refer to the phenomenon primarily as postmortem fetal extrusion. In ...
These changes can generally be divided between early post-mortem changes and late post-mortem changes (also known as decomposition). [12] These changes occur along a continuum and can be helpful in determining the post-mortem interval, which is the time between death and examination. The stages that follow shortly after death are:
Maternal immune cells are also found in the offspring yielding in maternal→fetal microchimerism, though this phenomenon is about half as frequent as the former. [ 11 ] Microchimerism had also been shown to exist after blood transfusions to a severely immunocompromised population of patients who suffered trauma .
Posthumous sperm retrieval (PSR) is a procedure in which spermatozoa are collected from the testes of a human corpse after brain death.There has been significant debate over the ethics and legality of the procedure, and on the legal rights of the child and surviving parent if the gametes are used for impregnation.
That is a rare event, but more commonly, the build-up of pressure inside the abdominal cavity can lead to the extrusion of the whale's penis through the genital slit. A similar phenomenon, postmortem fetal extrusion , can occur to the carcass of a pregnant whale: Tim Flannery wrote that "A rotting whale could fill with gas to bursting, ejecting ...
As the fetal hypothalamus matures, the activation of the hypothalamic–pituitary–adrenal (HPA) axis initiates labor through two hormonal mechanisms. The end pathway of both mechanisms lead to contractions in the myometrium, a mechanical cause of placental separation, which is due to the sheer force and contractile and involutive changes that occur within the uterus, distorting the placentome.
Post-maturity syndrome is the condition of a baby born after a post-term pregnancy, first described by Stewart H. Clifford in 1954. [1] Post-maturity refers to any baby born after 42 weeks gestation, or 294 days past the first day of the mother's last menstrual period.