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Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Schematic overview of the cardiovascular system. Schematic overview of the cardiovascular system.
The respiratory system. (a) Sagittal section of the head and neck, revealing the organs of the upper The respiratory system. (a) Sagittal section of the head and neck, revealing the organs of the upper
Relationship of the lymphatic system to the cardiovascular system. Relationship of the lymphatic system to the cardiovascular system.
The components of the respiratory system with micrographs of the respiratory epithelium and alveoli. ... The components of the respiratory system with micrographs of the respiratory epithelium and alveoli. ...
The metric system specifies fasteners by diameter, length, and pitch. The metric system specifies fasteners by diameter, length, and pitch.
Human activity has released carbon from sequestration in long-term reservoirs Human activity has released carbon from sequestration in long-term reservoirs
Video: Muscle cell structures - actin, myosin and titin filaments

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