because it was part of the pyro ad
atrium
Veins, arteries or valves
the name you stated is the right answer lol
any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)
it is connected by an aorta
They were made of limestone blocks (outer) and granite burial chambers (inner).
The human heart has four chambers connected by valves. We have 2 smaller chambers on the upper half of our heart and two larger chambers on the bottom of our heart. The smaller chambers are called atria; the larger chambers are called ventricles. So we refer to these chambers as right and left atrium, and right and left ventricle.
Endocardium is the innermost layer of tissue that lines the chambers of the heart.
These tiny chambers are called alveoli. They are not exclusive to just reptiles, but are part of the circulatory system of all vertebrates.
By the Chesapeake Bay
The atria and the ventricles are connected through the AV valves. The left and right sides of the heart are separated by the septum.