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Author Question: Ms. Randleman's students use a unique software program in her biology class. The program allows ... (Read 688 times) |
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
If you could remove all of your skin, it would weigh up to 5 pounds.
There are 60,000 miles of blood vessels in every adult human.