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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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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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Cyanide works by making the human body unable to use oxygen.

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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Photo of the neck of a patient with non-Hodgkin’s lymphoma showing the swelling associated with enla Photo of the neck of a patient with non-Hodgkin’s lymphoma showing the swelling associated with enla
neck, head and brain neck, head and brain
Anatomically modern humans from the Israeli cave sites of Skhul and Qafzeh may be the earliest found Anatomically modern humans from the Israeli cave sites of Skhul and Qafzeh may be the earliest found
Feedback mechanisms of the thyroid gland. Feedback mechanisms of the thyroid gland.
Many different types of labels may be found on packages containing hazardous materials. Clockwise ... Many different types of labels may be found on packages containing hazardous materials. Clockwise ...
Ribonucleotides containing unusual nitrogenous bases are found in transfer RNA Ribonucleotides containing unusual nitrogenous bases are found in transfer RNA
Video: Miller's reaction chamber experiment Animation

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