CORTEX • E-FREE TRANSLATION.COM • Definition of Cortex

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/kˈɔrtɛks/ Listen

noun

Cortex n. (pl. cortices)

Bark, as of a tree; hence, an outer covering.

(Med.) Bark; rind; specifically, cinchona bark.

(Anat.) The outer or superficial part of an organ; as, the cortex or gray exterior substance of the brain.

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Etymology of 'Cortex'

Collaborative International Dictionary of English 0.48

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"Cortex" Quotes from Famous Books

... handleless dumb-bell, is submitted as a demonstration that during voluntary movements of the eyes, and probably of the head as well, there is a moment in which stimulations are not transmitted from the retina to the cerebral cortex, that is, a moment of central anaesthesia. The reason for saying 'and probably of the head as well,' is that although the phenomena described are gotten equally well from movements of the head, yet it is not perfectly ...

— Harvard Psychological Studies, Volume 1 • Various

... realized his mistake. His Majesty hadn't been out. His Majesty had been with them all along—a four-foot, irregular sphere of grayish-white nerve matter and intricately wrinkled cortex dependent for movement on borrowed backs and legs—and was now peering at them out of the only pair of eyes in the termitary as though in doubt as to what to do ...

— The Raid on the Termites • Paul Ernst

... substance and white, or fibrous, substance. The greater part of the grey matter is situated as a layer on the outside of the cerebrum, or great brain, where it forms a rind from one twelfth to one eighth of an inch in thickness, known as the cortex. It is also found on the surface of the cerebellum. Diffuse masses of grey matter are likewise met in the other parts of the brain, and extending downward through the centre of the spinal cord. The function of the grey matter is to form centres to which the nerve fibres ...

— Ontario Normal School Manuals: Science of Education • Ontario Ministry of Education

... structure of the lungs (1661), demonstrating for the first time, by his discovery of the capillaries, the connection of the arteries with the veins. In his work, De viscerum structura (1666), he describes the histology of the spleen, the kidney, the liver, and the cortex of the brain, establishing among other things the fact that the liver was really a conglomerate gland, and discovering the Malpighian bodies in the kidney. This work was done on a broad comparative basis. "Since in the higher, more perfect, red-blooded animals, the simplicity of ...

— Form and Function - A Contribution to the History of Animal Morphology • E. S. (Edward Stuart) Russell