Word: chambers
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Useless Pumping. In transposition, placement of the heart's outflow pipes is reversed. The aorta, the great artery designed to supply oxygenated blood to the entire body, arises from the right lower chamber (ventricle) of the heart instead of from the left. As a result, it carries used blood back into circulation. The pulmonary artery, designed to carry used blood to the lungs for oxygenation, arises from the left ventricle instead of from the right; as a result, oxygen-enriched blood is pumped uselessly back and forth between lungs and heart...
They hooked up the tiny 7-lb. 3-oz. child to a heart-lung machine. Then they took the venae cavae, the two great veins that carry used blood back to the heart, cut them away from their normal position leading into the right upper chamber (auricle) and led them over to the left side. As near simultaneously as possible, the team of surgeons took the pulmonary veins, which carry oxygenated blood from lungs to heart, and severed them from the left auricle. They stitched the venae cavae to the places where the pulmonary veins had entered the left auricle...
Excavations are also being made north of Sardis, where the Harvard-Cornell team hopes to reach a Lydian burial chamber sometime next year...
...forget about politics, except me." Not a chance. Back came Butler to surrender. Then, at last, the hour of glory: Home's appearance on the doorstep, his smiling announcement that he was off to see the Queen, the quiet talk with Elizabeth in the Buckingham Palace audience chamber as sun softened the palace gardens and a military band played for the changing of the guard in the forecourt. Had he been able to form a government? Replied Lord Home: "Yes, I have, and I have kissed hands with the Queen on my appointment as Prime Minister...
Almost unnoticed amid the coups and chaos around the hemisphere, one country last week quietly went from military control back into the hands of a constitutional President. In Buenos Aires' Chamber of Deputies, courtly, white-haired Dr. Arturo Umberto Illia, 63, took the oath of office as Argentina's 29th President, ending 18 months of military-dominated government that began with the overthrow of President Arturo Frondizi...