Examples from the Web for pericardial
The heart is thus covered by the pericardial sac, but is not contained inside its cavity.A Practical Physiology|Albert F. Blaisdell
These tubules, after considerable subdivision, open by a large number of apertures into the pericardial cavity.The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour
The pericardial funnel leads into a glandular section of the organ, the lining cells of which are filled with concretions.
Each leads into a short sac from which five tracheal tubes depend into the pericardial blood-sinus.
The pericardial cavity becomes completely separated from the body cavity, and a distinct pericardium is formed.