Sentences with phrase «ventricle occur»

Not exact matches

Hydrocephalus occurs when the fluid that surrounds the brain and spinal cord builds up in the ventricles of the brain.

Tricuspid regurgitation (TR) occurs when the heart's tricuspid valve leaks, allowing blood to flow back from the right ventricle to the right atrium.

Atrial fibrillation is a common and irregular and rapid heart rate that occurs when the left ventricle stiffens to counteract high blood pressure while the left atrium dilates in response to higher pressures.

While the conventional wisdom has been that congenital heart defects occur late in the formation of the organ, we now think that the defects likely result from this very first decision involving the division between the left and right ventricles.

We made two critical discoveries: the signals occur while the embryo is still just a simple cup - shaped structure, before any organs have begun to form; and, from the very beginning, these cells are earmarked for either the left or right ventricle (chamber) of the heart.

Hypertrophy (thickening) of the ventricles can occur secondary to certain other diseases in cats (such as hyperthyroidism and hypertension), but most cases are idiopathic (i.e., have no obvious underlying cause) and are considered primary diseases of the heart itself.

Eventually left sided CHF can occur because of an overload of blood to the left ventricle as more blood is shunted through the right ventricle, leading to more blood flowing through the lungs, leading to more blood flowing back into the left atrium and left ventricle.

In this disease an abnormal opening occurs between the ventricles, which allows blood to flow directly from the left ventricle (higher pressure) to the right ventricle (lower pressure).

The proposed reason is that compressivе force occurred during isovolumic contractiоn with maximally dilated ventricles and closed atrioventricular valves5.

As heartworms grow in the right ventricle of the heart and its blood vessels, blockage begins to occur.

When cardiac tamponade occurs, diastolic collapse of the right atrium and, sometimes, the right ventricle may be seen during the echocardiogram.

It occurs most commonly in the left atrium, where oxygen - rich blood from the lungs returns to the heart and is passed to the left ventricle, where it is pumped out to the body.

When a dog is coughing due to heart disease, often it is the result of the blood from the left ventricle or chamber of the heart being pushed back into the atrium and that usually occurs due to some type of damage to the heart valves or some type of change in the valve.