Contracts

... obvious lack of ability to survive. This way the population is rid of unfavorable genetic disorders with no effort required. What humans are doing contracts this refinement of genetic material such that we chose altruistically to allow individuals with disorders or disabilities to live and strive ...

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... 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 systole, which is the highest blood pressure of an individual can reach. The time when the heart relaxes is called diastole, a period ...

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... 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 the stems again before putting the flowers in a vase. Why might this ...

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... depending on the diameter of the aorta, as well as the elastic nature of the artery wall that first expands after the initial heart beat, and then contracts to give its potential energy to the blood flow. So, to make a long story short, it's either the aorta or the left ventricle, depending on ...

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my knowledge in anatomy isn't that great, but i thought that the veins run through the muscular part of the diaphragm, so when the diaphragm contracts, the veins will be compressed

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