Foramen ovale (heart) ovale, the fossa ovalis. A fetus receives oxygen not from its lungs, but from the mother's oxygen-rich blood via the placenta. Oxygenated blood from the placenta travels through the umbilical cord to the right atrium of the fetal heart. As the fetal lungs are non-functional at this time, it is more efficient for the blood to bypass them. This is accomplished through 2 cardiac shunts. The first is the foramen ovale which shunts blood from the right atrium to the left atrium. The second is the ductus arteriosus which shunts blood from the pulmonary artery (which, after birth, carries blood
Aonghas (given name) According to historian Alex Woolf, the early Gaelic form of the name, "Oengus", was borrowed from the Pictish "Onuist", which appears in British as "Ungust". Woolf noted that these names are all derived from the Celtic "*Oinogustos". Linguist John Kneen derived this name from two Celtic elements the following way: "*Oino-gustos", meaning "one-choice". Woolf also stated that between about AD 350 and AD 660, the Insular Celtic dialects underwent changes which included the loss of the final syllables and unstressed vowels, which affected "*Oinogustos" thus: "*Oin<del>o</del>gust<del>os</del>". Aonghas (given name) Aonghas is a masculine given name in Scottish Gaelic. It is