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Word of the day
P
- Ionic channel
-
A small pore composed of a protein located on the cell surface that allows ions such as sodium, potassium or calcium to pass through.
- Plasma :
The liquid part of the blood in which the blood cells (red and white blood cells in particular) are immersed.
- Positron emission tomography (PET) :
Imaging technique that measures the metabolic activity of a tissue using radioactive compounds.