Examlex
Which of the following structures function in holding other organelles in place,maintaining cell shape and rigidity,and direct organelle movement?
Systole
Contractile phase of the cardiac cycle.
Diastole
Relaxation phase of the cardiac cycle.
Cardiac Cycle
The sequence of events that occurs in the heart during one heartbeat, including contraction (systole) and relaxation (diastole) of the atria and ventricles.
Valve
A device or structure that regulates, directs, or controls the flow of a fluid by opening, closing, or partially obstructing pathways.
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