cortex definition
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- Full Definition of CORTEX. 1. a (1) : the outer or superficial part of an organ or bodily structure (as the kidney, adrenal gland, or cerebellum or a bone); especially: cerebral cortex (2) : the proteinaceous usually pigmented layer of a hair below the cuticle b: the outer part of some organisms (as paramecia).
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- The cerebral cortex is gray matter, consisting mainly of cell bodies (with astrocytes being the most abundant cell type in the cortex as well as the human brain as a whole) and capillaries. It contrasts with the underlying white matter, consisting mainly of the white myelinated sheaths of neuronal axons.he cerebral cortex plays a key role in memory, attention, perception, awareness, thought, language, and consciousness. The human cerebral cortex is 2 to 4 millimetres (0.079 to 0.157 in) thick. In large mammals, the cerebral cortex is folded, giving a much greater surface area in the confined volume of the skull.
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Cerebral cortex The cerebral cortex is the largest region of the mammalian brain and plays a key role in memory, attention, perception, cognition, awareness, thought, language, and consciousness. The cerebral cortex is the most anterior (rostral) brain region and consists of an outer zone of neural tissue called gray matter, which contains neuronal cell bodies.
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cortex Definition of cortex for English Language Learners. medical : the outer layer of an organ in the body and especially of the brain.
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What is the Cerebral Cortex? Top 10 amazing movie makeup transformations. The cerebral cortex is the outermost layer of the brain in complex animals such as mammals, including humans. Despite a thickness of less than 0.2 inch (5 mm), it is responsible for most higher brain functions, including language, memory, and consciousness.he cerebral cortex is responsible for higher brain functions like language and memory. The cerebral cortex is a layer of the brain responsible for complex functions. The cerebral cortex is the outermost layer of brain.
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Cortex in Plants: Function & Concept Lesson Summary. In this lesson we discussed the definition of a plant cortex and discussed various functions the cortex has for the plant. The cortex is root and stem tissue found between the epidermis and vascular tissue of a plant.
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Brain In each hemisphere of the mammalian brain the insular cortex (often called insula, insulary cortex or insular lobe) is a portion of the cerebral cortex folded deep within the lateral sulcus (the fissure separating the temporal lobe from the parietal and frontal lobes). Cerebral Cortex.
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- cerebral cortex. noun. : the convoluted surface layer of gray matter of the cerebrum that functions chiefly in coordination of sensory and motor information—called also pallium; see neocortex.efinition of CEREBRAL CORTEX. : the convoluted surface layer of gray matter of the cerebrum that functions chiefly in coordination of sensory and motor information — compare neocortex. ADVERTISEMENT. body mass index, Electra complex, misery index, Oedipus complex. noun.
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visual cortex visual cortex. 1. the portion of the cerebral cortex of the brain that receives and processes impulses from the optic nerves. visual cortex n. The region of the cerebral cortex occupying the entire surface of the occipital lobe and receiving the visual data from the lateral geniculate body of the thalamus. Also called visual area.
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- 1. prefrontal lobe-the anterior part of the frontal lobe. prefrontal cortex. cerebral cortex, cerebral mantle, cortex, pallium-the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum.lobe - (anatomy) a somewhat rounded subdivision of a bodily organ or part; ear lobe.. prefrontal lobe-the anterior part of the frontal lobe. prefrontal cortex. cerebral cortex, cerebral mantle, cortex, pallium-the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum. lobe - (anatomy) a somewhat rounded subdivision of a bodily organ or part; ear lobe. 1  Facebook. 2  Twitter.
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- The surface of your brain is called the cortex, and the cortex is the part of your brain that contains your neurons. The more surface your brain has, the more cortex it has. The more cortex it has, the more neurons it has.
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Cerebral cortex The cerebral cortex is the cerebrum 's (brain) outer layer of neural tissue in humans and other mammals.
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- cerebral cortex. noun. : the convoluted surface layer of gray matter of the cerebrum that functions chiefly in coordination of sensory and motor information—called also pallium; see neocortex.efinition of CEREBRAL CORTEX. : the convoluted surface layer of gray matter of the cerebrum that functions chiefly in coordination of sensory and motor information — compare neocortex. ADVERTISEMENT.
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Brain Insular cortex. In each hemisphere of the mammalian brain the insular cortex (also insula and insular lobe) is a portion of the cerebral cortex folded deep within the lateral sulcus (the fissure separating the temporal lobe from the parietal and frontal lobes).
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PALEOCORTEX April 7, 2013. noun. cerebral cortex which possesses three to five cortical layers and is phylogenetically older than neocortex. It is primarily regarded with olaspecty operations and comprises entorhinal cortex and peri amygdaloid cortex. PALEOCORTEX: The paleocortexis missing two vital layers..
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A Guide to the Anatomy of the Brain Distinctly human traits including higher thought, language and human consciousness as well as the ability to think, reason and imagine all originate in the cerebral cortex. The cerebral cortex is what we see when we look at the brain. It is the outermost portion that can be divided into the four lobes of the brain. Each bump on the surface of the brain is known as a gyrus, while each groove is known as a sulcus.
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cortex 1. a (1) : the outer or superficial part of an organ or bodily structure (as the kidney, adrenal gland, or cerebellum or a bone); especially: cerebral cortex (2) : the proteinaceous usually pigmented layer of a hair below the cuticle b: the outer part of some organisms (as paramecia). 2.
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cortex striate cortex the part of the occipital lobe of the cerebral cortex that is the primary receptive area for vision. cortex of thymus the outer part of each lobule of the thymus; it consists chiefly of closely packed lymphocytes (thymocytes) and surrounds the medulla.
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cortex Full Definition of CORTEX. 1. a (1) : the outer or superficial part of an organ or bodily structure (as the kidney, adrenal gland, or cerebellum or a bone); especially: cerebral cortex (2) : the proteinaceous usually pigmented layer of a hair below the cuticle b: the outer part of some organisms (as paramecia).2.edical Definition of CORTEX. 1. a: the outer or superficial part of an organ or body structure (as the kidney, adrenal gland, or a hair); especially: cerebral cortex b: the outer part of some organisms (as paramecia). 2.
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What is the Motor Cortex? The motor cortex of the brain is a region in the posterior part of the frontal lobe that controls voluntary movement.Neurons in this region of the brain send signals down the spinal cord to the muscles to coordinate movements.he motor cortex works in harmony with the premotor areas in the frontal cortex to plan out and execute voluntary movement. It is made up of Betz cells, special neurons that send axons down into the spinal cord. These axons communicate with spinal neurons by synaptic transmission.
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- Definition of the Cortex. Let's explore the cortex layer in more detail. The cortex is defined as root and stem tissue found between the epidermis and vascular tissue of a plant. When you eat potatoes or carrots you are actually eating the root of a plant's cortex.
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- The surface of your brain is called the cortex, and the cortex is the part of your brain that contains your neurons. The more surface your brain has, the more cortex it has. The more cortex it has, the more neurons it has. The more neurons it has, the smarter it is.
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- cortico- or cortic- pref. Cortex: corticotropin. [From Latin cortex, cortic-, bark, rind; see cortex.] cortico- or before a vowel cortic- combining form (Biology) indicating the cortex: corticotrophin. cor•tex (ˈkɔr tɛks) n., pl. -ti•ces (-təˌsiz) 1. a. the outer region of a body organ or structure, as the outer portion of the kidney. b. cerebral cortex.
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Cerebral cortex The cerebral cortex is gray matter, consisting mainly of cell bodies (with astrocytes being the most abundant cell type in the cortex as well as the human brain as a whole) and capillaries.It contrasts with the underlying white matter, consisting mainly of the white myelinated sheaths of neuronal axons.he layered structure of the mature cerebral cortex is formed during development. The first pyramidal neurons generated migrate out of the ventricular zone and subventricular zone, together with reelin producing Cajal–Retzius neurons, from the preplate.
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Translations for prefrontal cortex Prefrontal cortex. The prefrontal cortex is the anterior part of the frontal lobes of the brain, lying in front of the motor and premotor areas. This brain region has been implicated in planning complex cognitive behavior, personality expression, decision making, and moderating social behavior.iktionary (0.00 / 0 votes) Rate this definition: prefrontal cortex (Noun). The anterior part of the frontal lobes of the brain, lying in front of the motor and premotor areas.