Atrial septal defect (ASD) is a heart defect in which blood flows between the atria (upper chambers) of the heart. Some flow is a normal condition both pre-birth and immediately post-birth via the foramen ovale, however when this does not naturally close after birth it is referred to as a patent (open) foramen ovale (PFO). Normally, after PFO closure, the atria are separated by a dividing wall, the interatrial septum. If this septum is defective or absent, then oxygen-rich blood can flow directly from the left side of the heart to mix with the oxygen-poor blood in the right side of the heart, or vice versa. This can lead to lower-than-normal oxygen levels in the arterial blood that supplies the brain, organs, and tissues. However, an ASD may not produce noticeable signs or symptoms, especially if the defect is small. Also, in terms of health risks, people who have had a cryptogenic stroke are more likely to have a PFO than the general population.
is a patent foramen ovale an atrial septal defect?
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Answer: yes

Dyslexia, also known as reading disorder, is characterized by trouble with reading despite normal intelligence. Different people are affected to varying degrees. Problems may include difficulties in spelling words, reading quickly, writing words, ''sounding out'' words in the head, pronouncing words when reading aloud and understanding what one reads. Often these difficulties are first noticed at school. When someone who previously could read loses their ability, it is known as alexia. The difficulties are involuntary and people with this disorder have a normal desire to learn.
is not being able to spell a form of dyslexia?
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Answer: yes

The band announced the tour November 2011, on On Air with Ryan Seacrest. The group stated the tour would be bigger, moving from the festival circuit, playing theaters and auditoriums. The tour also marks the band's first shows in Canada. The tour became a huge success, with shows selling out in seven major markets: Boston, Chicago, Washington, D.C., Detroit, New York City, Raleigh and Sacramento and the tour sold out in ten minutes. The band also played two festival shows, the Houston Rodeo and Mardi Gras at Universal Studios. Joining the band on tour was British-Irish boy band, One Direction, giving the band their first performances in the U.S.
did one direction tour with big time rush?
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Answer:
yes