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Re: 24hr in house MD (was Catastrophic VBAC's) From: Cheri Van Hoover (cherivh@waonline.com) Mon Feb 16 18:13:19 1998 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: Gerald P. Rodriguez: "Re: Is This Common Pratice??" Previous message: Roberta Speyer: "Re: OBGYN.net Party RSVP" Bernard Cristalli wrote: > DoctorJoe@aol.com wrote: > > > > Mother Nature lets the kid and placenta attached until the blood flow stops, right? > > So the baby isn't supposed to bleed. > > > > Joe P. > -- > > I think in Mother Nature the baby falls and the cord is torn. Like it > happens in animals (think of giraffes...). The tear creates a spasm and > the bleeding stops soon. I've asked an anthropologist who studies apes in the wild how our nearest kin do it. She said they wait until after the placenta is delivered, chew through the cord, then discard the placenta. They don't eat or bury the placenta, just leave it behind as they move on with their group. My understanding of the physiology of cord hemostasis is that Wharton's jelly expands on contact with air and that the umbilical vessels go into spasm due to the same increase in inspired O2 that causes the ductus arteriosis to begin to close. Probably someone else can explain this better. -- Cheri Van Hoover, CNM Midwifery Service at Stanford Next message: Gerald P. Rodriguez: "Re: Is This Common Pratice??" Previous message: Roberta Speyer: "Re: OBGYN.net Party RSVP"

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