In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
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The average adult has about 21 square feet of skin.
The four stages of cross-bridge cycling in skeletal muscle.
Striated Muscle Fiber
cat muscle anatomy lab4
Desmosomes and gap junctions, as shown in heart muscle: Desmosome