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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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Excessive alcohol use costs the country approximately $235 billion every year.

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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Relationships between direction of flow of blood and water or air in different vertebrates. Relationships between direction of flow of blood and water or air in different vertebrates.
Looking at Cells Looking at Cells
Microscopic view of glucagon and insulin secreting cells in the islet Langerhan Microscopic view of glucagon and insulin secreting cells in the islet Langerhan
Blood Supply to the Lungs Blood Supply to the Lungs
Blood vessels associated with the nephron. The glomerulusis a ball of capillaries that have unusuall Blood vessels associated with the nephron. The glomerulusis a ball of capillaries that have unusuall
Stem-lengthening effect of gibberellins. Stem-lengthening effect of gibberellins.
Video: Structures that affect circulation - arterioles and vasomotor responses and venous return

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