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The role and function of narcotics are for depressant and is typically used for severe pain. What these medications do is that they shut down the central nervous system which sends and perceives this sense of severe pain. Examples of narcotics include codeine and MORPHINE.
There are two phases of the cardiac cycle. These phases are diastole and systole. The dicrotic notch is found during systole, specifically ventricular systole.
Systole is the time when <span>left and right ventricles contract and eject blood into the aorta and pulmonary artery.
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Diastole is the time when the ventricles are not contracting or are in a relax mode.
