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Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

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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.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Major Arteries of the Brain Major Arteries of the Brain
Brain hemispheres and their functions. Brain hemispheres and their functions.
Pech-Merle Cave: SPOTTED HORSES AND HUMAN HANDS Pech-Merle Cave: SPOTTED HORSES AND HUMAN HANDS
Split-brain patients were shown composite photographs Split-brain patients were shown composite photographs
Main body cavities that hold human organs Main body cavities that hold human organs
Human biological clock Human biological clock
Video: Methods that regulate pH

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