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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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By definition, when a medication is administered intravenously, its bioavailability is 100%.

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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).

Circumduction Circumduction–Moving a body part in a circular motion. Circumduction Circumduction–Moving a body part in a circular motion.
Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia
Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision
A fuel heater is part of the fuel filter and water separator located on the frame rail of a Ford ... A fuel heater is part of the fuel filter and water separator located on the frame rail of a Ford ...
How to evaluate angles using cosecant, special triangles, and the unit circle (Part 3) How to evaluate angles using cosecant, special triangles, and the unit circle (Part 3)
Part 2 Part 2
Video: Structures that affect circulation - heart and systolic/diastolic BP

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