Sentences with phrase «ventricle contracts»

The oxygen rich blood returns to the left atrium and is delivered to the body when the left ventricle contracts.

Because of the pressure created when the left ventricle contracts, the mitral valve wears out in many dogs.

However, in MMVD the thickening of the mitral valve results in an imperfect seal and allows blood to «leak» backward into the atrium as the ventricle contracts.

The electrical impulses cause the heart to contract in a coordinated fashion: the atria contract first and push blood into the ventricles; then the ventricles contract and push blood to either the lungs or the rest of the body.

Only a fraction of the electrical impulses are able to travel across the AV node and down through the heart's normal conduction system (the «wiring») to make the ventricles contract.

When the ventricle contracts early without the usual signal from the atria it is called a premature ventricular contraction or PVC.

When the left ventricle contracts, blood is pushed into the aorta creating systolic arterial pressure (SAP); then the left ventricle empties, relaxes, and begins to fill again, and aortic pressure falls, creating diastolic arterial pressure (DAP).

In mitral valve disease, the valve does not close completely and allows blood to «regurgitate» or partially leak backward into the left atrium each time the left ventricle contracts.

As the ventricle contracts, the volume of the chamber decreases.

If the ventricle contracts, or beats, out of rhythm, it doesn't pump blood effectively, and the brain and body don't receive an adequate supply of oxygen.

When the left ventricle contracts it exerts great pressure to get the blood through the aorta and to the rest of the body.

Every time the ventricles contract and relax, or «beat», blood is pumped in one direction to the lungs, organs, and tissues of the body.

This thickening does not allow the valve to close fully, and blood regurgitates backwards into the left atrium when the left ventricle contracts.