cortex Definition
cor·tex (kôr′teks′)
noun pl. -·ti·ces′-tə sēz′
- the outer part or external layers of an internal organ, as of the kidney or the adrenal glands
- the outer layer of gray matter over most of the brain
- Bot.
- a layer of tissue in the roots and stems of dicotyledonous plants, located between the stele and epidermis
- loosely any layer of stem tissue external to the xylem
- an outer layer of tissue in certain algae, lichens, and fungi
- Pharmacy the bark or rind of a plant
Etymology: L, bark of a tree: see corium
cortex Usage Examples
Converse of object
- activate: In these conditions it seems appropriate to activate intact visual cortex of blind or partial sight patients to rehabilitate vision.
- stimulate: This fragment of the complete ACTH molecule does not stimulate the adrenal cortex to produce hormones.
Adjective modifier
- prefrontal: In addition, lowered activity in the prefrontal cortex relative to controls has been reported for those with autism.
- cerebral: An analysis of cell lineage in the rat cerebral cortex.
- frontal: More recently, I have begun to explore a possible general role for the frontal cortex in processing emotion more broadly.
- adrenal: The outer part of the adrenal gland is the adrenal cortex which makes three main hormones called steroids.
- perirhinal: Cells in the perirhinal cortex, which provide a major input to LEC, also revealed little spatial tuning.
- parietal: The results do not indicate a specific role of parietal cortex in attentional shifting.
Modifies a noun
activation: Likewise, lots of fMRI studies in humans also show premotor cortex activations caused in the absence of motor requirements.
Noun used with modifier
- premotor: Likewise, lots of fMRI studies in humans also show premotor cortex activations caused in the absence of motor requirements.
- pre-frontal: This is because they regularly exercise the part of the brain known as the pre-frontal cortex which reinforces attention span.
- motor: Powerful magnets aimed at the motor cortex have been shown to induce muscles to twitch.
- barrel: Recent research work here has been undertaken on the auditory cortex and the rodent barrel cortex.
- rat: The scientists managed to stimulate single brain cells in the rat cortex.
- root: Look for signs of mycorrhizal infection - the root cortex will contain bright blue or purple staining hyphal threads.
Possessives
brain: In the past, researchers trying to understand dyslexia have focused on the highly developed language centers of the brain's cerebral cortex.
Preposition: in
brain: Each receptor is connected through the optic nerve to the visual cortex in the brain.
Preposition: of
- monkey: The final experiments measure attentional modulation of single neuron activity in the visual cortex of the monkey.
- brain: A core pathology of the disease is reduced activity in the prefrontal cortex of the brain.
- rat: In addition, Robbins has found alterations in the hippocampus, amygdala and prefrontal cortex of these rats.
Browse dictionary entries near cortex
- ‹ Cortes
- ‹ cortege
- ‹ Cortés
- ‹ Cortázar
- ‹ Corsica
- ‹ corsetry
- ‹ corsetiere
- ‹ corset
- ‹ corselet
- ‹ corse
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- corticate ›
- cortico- ›
- corticoid ›
- corticosteroid ›
- corticosterone ›
- corticotropin ›
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