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69My First Miracle
Miracles are good things that we expect but they don't happen much often. If we try our best, we can create these miracles. Still, there are some miracles that we have no control over. To me, one such...
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78Aging Changes In The Heart And Blood Vessels
The "aging process" causes specific cardiovascular changes. This leads to reduced physical and mental ability. Aging is also a risk factor for cardiovascular disease. Scientists a have learned great deal...
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70How Muscles Function
Muscles are usually divided into three groups according to their structure and function: striated muscle, smooth muscle, and cardiac muscle. Striated muscles are considered voluntary muscles because their movements can be consciously controlled. Smooth and cardiac muscles are considered to be involuntary because they contract and relax automatically and cannot be controlled at will.
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78Skeletal and smooth muscles
Skeletal muscles make about 40% of our body and almost another 10% is added by smooth and cardiac muscles.It shows fifty percent of the human body is muscles.Skeletal muscles vary in size from the very small...
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61Atherosclerosis and its risk factors
1. Atherosclerosis is a disease of the arteries that causes it to ‘harden' and affects both medium and large arteries. 2. It is the principal cause of heart attacks and strokes and is responsible for over...
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