pericardium

He knew, also, that the pulmonary veins conducted arterial blood, and that the pericardium was a shut sac.

He wrote an extensive treatise upon tumors, and, it is stated, first successfully tapped the pericardium.

In the Dog-fish, at least, it has no connection with the pericardium.

The pericardium contained about eight ounces of straw-coloured fluid.

There was a light-brown exudation, extending over serous lamina of the pericardium and the surface of the heart.