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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There are 60,000 miles of blood vessels in every adult human.
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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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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Demonstrating the use of venipuncture equipment. Using a syringe to draw blood.
The cascade of events by which the stroke-induced release of glutamate kills neurons.
Glutamate dehydrogenase catalyzes the reductive amination of a-ketoglutarate
Proline and arginine are derived from glutamate
Vision light adaptation & release of the inhibitory neurotransmitter glutamate