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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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The human body produces and destroys 15 million blood cells every second.

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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.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th
Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision
Diverticula in the sigmoid colon. Diverticulosis is almost always located in the descending or sigmo Diverticula in the sigmoid colon. Diverticulosis is almost always located in the descending or sigmo
A fuel heater is part of the fuel filter and water separator located on the frame rail of a Ford ... A fuel heater is part of the fuel filter and water separator located on the frame rail of a Ford ...
The limbic system is located within the higher brain, or cerebrum. The limbic system is located within the higher brain, or cerebrum.
The cystic fibrosis protein is a membrane protein. The CFTR protein is located in the plasma membran The cystic fibrosis protein is a membrane protein. The CFTR protein is located in the plasma membran
Video: ATPase function - membrane transport, contractile proteins and synthesis

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