Examlex
The sarcophagi in the Tomb of the Caetennii reflect what change in Roman burial customs?
Atrioventricular Valves
Valves located between the atria and ventricles of the heart that prevent the backflow of blood.
Cardiac Cycle
Sequence of contraction and relaxation of heart chambers that occurs with each heartbeat.
Oxygen-Rich Blood
Blood that is high in oxygen concentration, typically found in the arterial system after oxygenation in the lungs.
Liver
A large vital organ in vertebrates responsible for detoxification, protein synthesis, and production of biochemicals necessary for digestion.
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