That second forced migration was known as the domestic, or internal, slave trade: âIn the seven decades between the ratification of the Constitution [in 1787] and the Civil War [1861],â the historian Walter Johnson tells us in his book Soul by Soul: Life Inside the Antebellum Slave Market, âapproximately one million enslaved people were relocated ...
plural umbilical cords. Learner's definition of UMBILICAL CORD. [count] : a long, narrow tube that connects an unborn baby to the placenta of its mother â sometimes used figuratively. The time has come to cut/sever the umbilical cord that keeps us dependent on foreign aid.
In placental mammals, the umbilical cord 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,, normally contains two arteries and one 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 t