Library / English Dictionary

    CORTEX

    Pronunciation (US): Play  (GB): Play

    Irregular inflected form: cortices  Listen to US pronunciation  Listen to GB pronunciation

     I. (noun) 

    Sense 1

    Meaning:

    The tissue that surrounds the lens nucleusplay

    Synonyms:

    cortex; lens cortex

    Classified under:

    Nouns denoting body parts

    Hypernyms ("cortex" is a kind of...):

    animal tissue (the tissue in the bodies of animals)

    Holonyms ("cortex" is a part of...):

    crystalline lens; lens; lens of the eye (biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focus light on the retina)

    Sense 2

    Meaning:

    The layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrumplay

    Synonyms:

    cerebral cortex; cerebral mantle; cortex; pallium

    Classified under:

    Nouns denoting body parts

    Hypernyms ("cortex" is a kind of...):

    neural structure (a structure that is part of the nervous system)

    Meronyms (parts of "cortex"):

    temporal cortex; temporal lobe (that part of the cerebral cortex in either hemisphere of the brain lying inside the temples of the head)

    occipital cortex; occipital lobe (that part of the cerebral cortex in either hemisphere of the brain lying in the back of the head)

    parietal cortex; parietal lobe (that part of the cerebral cortex in either hemisphere of the brain lying below the crown of the head)

    prefrontal cortex; prefrontal lobe (the anterior part of the frontal lobe)

    frontal cortex; frontal lobe (that part of the cerebral cortex in either hemisphere of the brain lying directly behind the forehead)

    cortical area; cortical region (any of various regions of the cerebral cortex)

    Golgi's cell; Golgi cell (a neuron in the cerebral cortex with short dendrites and with either a long axon or a short axon that ramifies in the grey matter)

    Meronyms (substance of "cortex"):

    gray matter; gray substance; grey matter; grey substance; substantia grisea (greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neurons)

    Hyponyms (each of the following is a kind of "cortex"):

    neocortex; neopallium (the cortical part of the neencephalon)

    archipallium; paleocortex (the olfactory cortex of the cerebrum)

    Holonyms ("cortex" is a part of...):

    cerebrum (anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans)

    Derivation:

    cortical (of or relating to a cortex)

    Sense 3

    Meaning:

    The tissue forming the outer layer of an organ or structure in plant or animalplay

    Classified under:

    Nouns denoting body parts

    Hypernyms ("cortex" is a kind of...):

    animal tissue (the tissue in the bodies of animals)

    plant tissue (the tissue of a plant)

    Hyponyms (each of the following is a kind of "cortex"):

    adrenal cortex (the cortex of the adrenal gland; secretes corticosterone and sex hormones)

    renal cortex (the cortex of the kidney containing the glomeruli and the convoluted tubules)

    Antonym:

    medulla (the inner part of an organ or structure in plant or animal)

    Derivation:

    cortical (of or relating to a cortex)

    Credits

     Context examples: 

    A long deep groove with an internal and external portion in the cerebral cortex creating a boundary between the parietal lobe and cuneus.

    (Parieto-Occipital Fissure, NCI Thesaurus)

    Pentoprilat also decreases angiotensin II-induced aldosterone secretion by the adrenal cortex, which leads to an increase in sodium excretion and subsequently increases water outflow.

    (Pentopril, NCI Thesaurus)

    Although the mechanism of action is not well established, mephenytoin potentially promotes sodium efflux from neurons in motor cortex, and stabilizes the threshold against hyperexcitability caused by excessive stimulation.

    (Mephenytoin, NCI Thesaurus)

    A very rare bone disorder characterized by thickening of the cortex in a linear pattern.

    (Melorheostosis, NCI Thesaurus)

    A disorder that occurs when the adrenal cortex does not produce enough of the hormone cortisol and in some cases, the hormone aldosterone.

    (Adrenal Gland Insufficiency, NCI Thesaurus/CTCAE)

    Also called adrenocortical carcinoma and cancer of the adrenal cortex.

    (Adrenocortical cancer, NCI Dictionary)

    The anterior portion of a deep fissure or furrow on the medial surface of the cerebral cortex.

    (Anterior Part of the Calcarine Fissure, NCI Thesaurus)

    A usually non-functioning variant of adrenal cortex adenoma, composed of large cells with abundant granular eosinophilic cytoplasm.

    (Adrenal Cortex Oncocytic Adenoma, NCI Thesaurus)

    A usually functioning adenoma of the adrenal cortex.

    (Pigmented Adrenal Cortex Adenoma, NCI Thesaurus)

    The researchers found that levels of 103 miRNAs were different in the amygdala and 31 in the prefrontal cortex of mice reared without gut bacteria (GF mice) compared to conventional mice.

    (New Light on Link between Gut Bacteria, Anxiety, The Titi Tudorancea Bulletin)


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