The two chambers at the bottom of the heart are called ventricles. Their job is to squirt out the blood. In the middle of the heart there is a thick muscle called the septum that separates the left and the right side. The atria and ventricles work together.The atria fill with blood and when they are full they let the blood into the ventricles.When these ventricles pump the blood out of the heart, the atria fill up again and the whole process starts again. There are valves in the heart that make sure that the blood is pumped in the right direction.When the heart contracts, it pumps blood from its chambers into the body.he atria fill with blood and when they are full they let the blood into the ventricles. When these ventricles pump the blood out of the heart, the atria fill up again and the whole process starts again. There are valves in the heart that make sure that the blood is pumped in the right direction.
BACKGROUND: Superior oblique myokymia is an uncommon disorder that causes monocular oscillopsia and diplopia. Patients with this condition complain of episodes of vertical or torsional movement of images in one eye, along with periods of double vision. This condition is thought to be related to abnormal firing of the superior oblique muscle.
Preceptal cellulitis is usually caused by a bacterial infection. Patients usually have redness and pain in addition to swelling. It usually occurs in one eye. Orbital cellulitis can also be caused by bacteria in the form of a sinus infection that invades the area around the bones that make up the eye socket.