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Did you know?

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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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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The human body produces and destroys 15 million blood cells every second.

Male Asiatic Lion after a recent fight Male Asiatic Lion after a recent fight
American soldiers—some of them regulars in deep blue uniforms, others in buckskin cowboy outfits— fi American soldiers—some of them regulars in deep blue uniforms, others in buckskin cowboy outfits— fi
Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo
Model of malaria protozoa in a red blood cell. New parasites are produced and mature in the RBC, ... Model of malaria protozoa in a red blood cell. New parasites are produced and mature in the RBC, ...
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