单词 | cortex |
释义 | cortex/ˈkɔːtɛks /noun (plural cortices /ˈkɔːtɪˌsiːz/) 1 Anatomy The outer layer of the cerebrum (the cerebral cortex), composed of folded grey matter and playing an important role in consciousness.Parts of the thalamus, and the frontal lobes of the cerebral cortex that are important in controlling mood, also connect to the hypothalamus....
1.1An outer layer of another organ or body part such as a kidney (the renal cortex), the cerebellum, or a hair.As well, the pigments used have less capacity for oxygenation and thus stay small enough to be removed from the hair cortex in 6 to 12 shampoos....
2 Botany An outer layer of tissue immediately below the epidermis of a stem or root.The notion that the root cortex of flowering plants that grow in aquatic or wetland environments under hypoxic conditions is comprised primarily of enlarged air spaces, or lacunae, has been considered for at least 150 years....
OriginLate Middle English: from Latin, literally 'bark'.
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