The plural form of cortex, referring to multiple outer layers of organs or structures, especially in the brain, kidneys, or plants.
Latin plural of 'cortex' (bark, rind). This is the standard anatomical plural used in medical and scientific contexts across multiple disciplines.
When doctors talk about your visual cortex, auditory cortex, and motor cortex, they're using this plural form—your brain actually has dozens of different cortices, each handling different jobs!
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