I know that the mother's placenta is connected to the fetus' navel via the umbilical cord on the outside (of the fetus), but then what? Where does the "inside" of the navel connect to in the fetus? Does it connect directly to the abdominal aorta, or is there some sort of fine capillary exchange system in the belly wall of the fetus? I guess this question could be generalized to apply to all mammals...
I am a little confused by the question because I tend to think of the placenta as being the fetus' placenta rather than the mother's placenta, and I didn't know there was an aorta anywhere but in the region of the heart, not the abdomen. Someone else who had anatomy in school might be able to tell you whether the blood supply that enters the baby at his or her navel goes through any kind of filter or if it just hooks up to a major blood vessel. Since one always hears that substances in the mom's bloodstream can "cross the placental barrier," it might be that any filtration involved is not in the baby's body but in the placental barrier itself.
Copyright 1994-2016 MedHelp International. All rights reserved.
MedHelp is a division of Aptus Health.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.