Relaxation

Pulse is generated by heart activity, contraction and relaxation. In the contraction period, blood is pumped out of heart to lungs or systemic circulation, while in relaxation period, blood enter the heart. The time when the heart contracts is called ...

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... major wroking part of the autonomic nervous system in case of fight or fright . and all know that the sympathetic for the urinary bladder make a relaxation of the wall and contraction of the internal urethral sphincter so howcome some people urinate in case of excessive fears Can any one explain ...

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during relaxation of heart it is diastolic and during contraction it is systolic

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... confirm the statement? For #3, I have an educated guess but could someone please explain fully? 1. Blood flows through the heart muscle during relaxation. 2. Blood flows throughout the body when the heart muscle contracts. 3. When you buy a bouquet of cut flowers, the florist tells you to cut ...

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... Many smokers don’t realize that nicotine’s effects on the heart, the nervous system, and the endrocine system are significant contributors to the relaxation, alertness, stress relief, and other good feelings they experience. This combination of physiological and psychological effects provides ...

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