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.
acquired aponeurotic ptosis Ptosis caused by a partial disinsertion, dehiscence or weakness of the aponeurosis of the levator palpebrae superioris muscle. It usually occurs in old age and is bilateral, but disinsertion can result from trauma to one eye (e.g. following eye surgery).ongenital ptosis may be caused by a problem with nerve innervation or a weak muscle. Drooping eyelids may also be the result of diseases such as myotonic dystrophy or myasthenia gravis. The primary symptom of ptosis is a drooping eyelid.