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Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

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The average adult has about 21 square feet of skin.

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Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Methyl-directed mismatch repair in E. coli Methyl-directed mismatch repair in E. coli
A fixed action pattern elicited by a sign stimulus. A fixed action pattern elicited by a sign stimulus.
Sign on methanol pump shows that methyl alcohol is a poison and can cause skin irritation and other ... Sign on methanol pump shows that methyl alcohol is a poison and can cause skin irritation and other ...
Daughter-strand gap repair Daughter-strand gap repair
Psoas sign Psoas sign
Lemon Sole Lemon Sole
Video: Male Reproductive System - The gonadotropin releasing hormone

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