2. in psychiatry, an unconscious defense mechanism in which unacceptable ideas, fears, and impulses are thrust out or kept out of consciousness. 3. gene r. enzyme repression interference, usually by the endproduct of a pathway, with synthesis of the enzymes of that pathway. gene repression the inhibition of gene transcription of an operon; in prokaryotes repressor binding to the operon is involved.
Physiology of Potassium Handling. Potassium (K+) is the most abundant cation in the body. About 90% of total body potassium is intracellular and 10% is in extracellular fluid, of which less than 1% is composed of plasma.
So, theyâre the most abundant cations in the body and have an inverse relationship in regards to intracellular and extracellular concentrations. So, if you remember potassiumâs normal value is 3.5 â 5.0 and it is primarily located within the cell. And then, sodium is primary located outside of the cell. And your sodium levels, the normal is 135 â 145. So, the mnemonic to help you remember this is PISO. PISO. Potassium in the cell.