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Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Two main types of nerve cells. Two main types of nerve cells.
Distribution of bonding and outer nonbonding electrons in the peptide group Distribution of bonding and outer nonbonding electrons in the peptide group
A group of capped langurs. A group of capped langurs.
Peer group activity of adolescents Peer group activity of adolescents
Main Theoretical Traditions in Sociology Main Theoretical Traditions in Sociology
Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults. Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults.
Video: Nerve Impulse Transmission Animation

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