Working of the heart: To easily identify atrial fibrillation with RVR, it is vital to understand the working of the heart. The atrium or atria (plural) is the upper chamber of the heart, bigger in size compared to the lower chambers known as the ventricles.
The X Factor 2014 live shows are coming up with 12 acts hoping to be named this yearâs winner. Judges Simon Cowell, Mel B, Louis Walsh and Cheryl Fernandez-Versini have made their decisions across the last two weekends and the categories are finalised.
Giving Adele a run for her money: Ella Henderson was one of the stand-out performances on last night's X Factor. Impressed: Tulisa Contostavlos gave Ella a standing ovation, while her fellow judges Louis Walsh, Gary Barlow and guest judge Mel B looked highly impressed after the audition.