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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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Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

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There are 20 feet of blood vessels in each square inch of human skin.

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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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

Psoriasis. This photograph demonstrates the characteristic white skin patches of this condition. Psoriasis. This photograph demonstrates the characteristic white skin patches of this condition.
Placenta previa. The condition is caused by the development of the placenta over the cervical canal, Placenta previa. The condition is caused by the development of the placenta over the cervical canal,
Region of the Search for Extraterrestrial Intelligence Region of the Search for Extraterrestrial Intelligence
This photograph of a Union soldier just freed from Andersonville prison, stunned and enraged norther This photograph of a Union soldier just freed from Andersonville prison, stunned and enraged norther
Who Gets Executed? Gender Bias in Capital Punishment Who Gets Executed? Gender Bias in Capital Punishment
Polio eradication campaign in Georgia in the 1950s. In the 1950s, 20,000 cases of polio occurred ... Polio eradication campaign in Georgia in the 1950s. In the 1950s, 20,000 cases of polio occurred ...
Video: Protein catabolism (Krebs cycle) and Protein anabolism (protein synthesis)

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