Examlex
What accounts for the view that we cannot protect the environment while simultaneously providing for people's needs?
Cardiac Cycle
The complete sequence of events in the heart from the beginning of one heartbeat to the beginning of the next, including systole and diastole phases.
Diastole
The phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.
Heart Chambers
The four compartments of the heart including two atria and two ventricles, involved in pumping blood throughout the body.
Cardiac Conduction System
A system of specialized muscle tissues in the heart that initiates and coordinates the contraction of the heart, regulating its rhythm.
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