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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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Classes of lymphocytes Classes of lymphocytes
Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa
Formed elements of blood: erythrocytes, leukocytes (neutrophils, eosinophils, basophils, lymphocytes Formed elements of blood: erythrocytes, leukocytes (neutrophils, eosinophils, basophils, lymphocytes
Destruction of Acetylcholine (ACh) by Acetylcholinesterase (AChE) Destruction of Acetylcholine (ACh) by Acetylcholinesterase (AChE)
Two lymphocytes that are reactive in a 19-year-old college student with infectious mononucleosis. ... Two lymphocytes that are reactive in a 19-year-old college student with infectious mononucleosis. ...
Anti-GM protesters attacking a field of genetically-modified maize in southwestern France Anti-GM protesters attacking a field of genetically-modified maize in southwestern France
Video: Cardiac Cycle (Part 2 of 4)

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