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Author Question: In an electric circuit the current measured in amperes is related to the voltage and the resistance ... (Read 45 times) |
In 1864, the first barbiturate (barbituric acid) was synthesized.
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.