Control of bladder storage is accomplished by involuntary muscles.

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Which anatomical plane is the only one that could not show both the sternal region and vertebral region

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.

1. beginning with all chambers of the heart in the "relaxed" phase, describe the cardiac cycle in mammals, with systole and diastole of the atria and ventricles. for each time point in the cycle you select, state the following: • whether the atria and ventricles are contracting or relaxing • whether the av valves and semilunar valves are closed or open • whether the pressure in the atria and ventricles is high or low