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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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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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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.
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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.
Fluid compartments in a typical vertebrate.
Diagram of a typical prokaryotic cell
Spectra of a Metal-Poor and a Metal-Rich Star
Why the Poor Need Children
Typical disposal container for sharps such as needles.
In a typical proteomic analysis, cells are exposed to different conditions