Atrial septal defect. (Redirected from Patent foramen ovale) Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart. Normally, the atria are separated by a dividing wall, the interatrial septum.
If you think your cat is sleeping a lot, youâre not off base. Cats tend to sleep in some form or another for anywhere from 16 to 20 hours a day.
On average, a cat will sleep for 16 hours a day. A domestic cat can run at speeds of 30 mph. The life expectancy of cats has nearly doubled over the last fifty years. Blue-eyed, white cats are often prone to deafness. The cat's front paw has 5 toes and the back paws have 4.