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Patent ductus arteriosus (PDA) is a medical condition in which the ductus arteriosus fails to close after birth: this allows a portion of oxygenated blood from the left heart to flow back to the lungs from the aorta, which has a higher blood pressure, to the pulmonary artery, which has a lower blood pressure.
Video explanation. Author: Tanner Marshall, MS Editor: Rishi Desai, MD, MPH, Tanner Marshall, MS “Patent” (not “patent” like an invention) refers to some opening, and a patent ductus arteriosus, which I’m going to call PDA, for short, refers to a blood vessel—the ductus arteriosus—which connects the pulmonary artery to the aorta during fetal development.
The PDA supplies the posterior third of the interventricular septum. The remaining anterior two-thirds is supplied by the left anterior descending artery, which is a branch of left coronary artery. It is typically a branch of the right coronary artery (70%, known as right dominance).
When the Kansas City Chiefs beat the Baltimore Ravens to go to the Super Bowl, Travis and Taylor celebrated with some post-game PDA, giving fans of the power couple a closer look at how these two ...
In urban areas like Jeddah, single women often take taxis driven by men – but they are expected to always sit in the back. “It is actually safe for women to travel in Saudi Arabia,” Nikolova ...
The parents-to-be seemed more in love than ever during their tour as they were holding hands and gazing at each other affectionately.
A study found female characters on prime-time television programs are less likely to demonstrate physical affection if they had a larger body type than thinner female characters. [40] Thus, even television producers act in a way as to intentionally limit public displays of affection based on the appearance of their actors, and that might affect ...
You’ve seen them—and their hands—everywhere: Kourtney Kardashian and Travis Barker (aka ‘Kravis’). From watching the couple fondle each other at family get-togethers to tongue-touching ...