What your bellybutton says about your health
These have come from the placenta and run through the ... pressure builds in the connecting vessels too. Veins have thinner ...
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Role of IgG Antibodies in Association With Placental Function and Immunologic Diseases in Human Pregnancy
The placenta also functions as an endocrine ... The formation of anastomoses between the dilated spiral arteries and endometrial maternal veins allows maternal blood circulation in low resistance ...