left atrium
left atrium of the heart
atrium sinistrum

There are at least four different locations where the activation can pass to the left atrium.

Standards for the size of a normal left atrium have been established.

The right side of the left atrium is exposed first.

The left atrium and ventricle send the blood out to the body.

The left atrium is one of four chambers in the human heart.

Then when the heart contracted, the cancer returned to the left atrium.

Whether you have a blood clot in your left atrium.

Passing the heart's left atrium, the ship goes through the artery to get to the brain.

After it comes back, it is sent to the left atrium.

This allows blood to pass directly from the right to left atrium.