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・ Umberto's Clam House
・ Umbetoceras
・ UMBI (disambiguation)
・ Umbil
・ Umbilia
・ Umbilia hesitata
・ Umbilia oriettae
・ Umbilia petilirostris
・ Umbilibalcis
・ Umbilibalcis lata
・ Umbilic torus
・ Umbilical
・ Umbilical (album)
・ Umbilical artery
・ Umbilical cable
Umbilical cord
・ Umbilical cord compression
・ Umbilical cord prolapse
・ Umbilical cord tomb of Taejo of Joseon Dynasty
・ Umbilical cord ulceration and intestinal atresia
・ Umbilical fascia
・ Umbilical folds
・ Umbilical granuloma
・ Umbilical hernia
・ Umbilical ligament
・ Umbilical line
・ Umbilical plane
・ Umbilical point
・ Umbilical region
・ Umbilical ring


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Umbilical cord : ウィキペディア英語版
Umbilical cord

In placental mammals, the umbilical cord (also called the navel string,〔()〕 birth cord or funiculus umbilicalis) is a conduit between the developing embryo or fetus and the placenta. During prenatal development, the umbilical cord is physiologically and genetically part of the fetus and, (in humans), normally contains two arteries (the umbilical arteries) and one vein (the umbilical vein), buried within Wharton's jelly. The umbilical vein supplies the fetus with oxygenated, nutrient-rich blood from the placenta. Conversely, the fetal heart pumps deoxygenated, nutrient-depleted blood through the umbilical arteries back to the placenta.
== Physiology in humans ==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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