Information about Myelinogenesis
Myelinogenesis is the process of sequential myelination of the parts of the central nervous system whose order approximates the evolutionary development of the central nervous system.
Paul Flechsig spent most of his career studying and publishing the details of the process in the cerebral cortex of the human. This takes place mostly between two months before and after birth. He identified 45 separate cortical areas and, in fact, mapped the cerebral cortex by the myelination pattern. The first cortical region to myelinate is in the motor cortex (part of Brodmann's area 4), the second is the olfactory cortex and the third is part of the somatosensory cortex (BA 3,1,2).
The last areas to myelinate are the anterior cingulate gyrus (F#43), the Inferior temporal lobe (F#44) and the Dorsolateral prefrontal cortex (F#45).
The Lancet Oct 19th 1901, p1028 DR. P. FLECHSIG: THE CEREBRAL CORTEX IN THE HUMAN SUBJECT.
Paul Flechsig spent most of his career studying and publishing the details of the process in the cerebral cortex of the human. This takes place mostly between two months before and after birth. He identified 45 separate cortical areas and, in fact, mapped the cerebral cortex by the myelination pattern. The first cortical region to myelinate is in the motor cortex (part of Brodmann's area 4), the second is the olfactory cortex and the third is part of the somatosensory cortex (BA 3,1,2).
The last areas to myelinate are the anterior cingulate gyrus (F#43), the Inferior temporal lobe (F#44) and the Dorsolateral prefrontal cortex (F#45).
The Lancet Oct 19th 1901, p1028 DR. P. FLECHSIG: THE CEREBRAL CORTEX IN THE HUMAN SUBJECT.
Myelin is an electrically insulating phospholipid layer that surrounds the axons of many neurons. It is an outgrowth of glial cells: Schwann cells supply the myelin for peripheral neurons while oligodendrocytes supply it to those of the central nervous system.
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The central nervous system (CNS) represents the largest part of the nervous system, including the brain and the spinal cord. Together with the peripheral nervous system, it has a fundamental role in the control of behavior.
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Paul Emil Flechsig (June 29, 1847 - July 22, 1929) was a German neuroanatomist, psychiatrist and neuropathologist. Born in Zwickau, he spent over fifty years of his medical career at the University of Leipzig.
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Birth is the process in animals by which an offspring is physiologically expelled from the body of its mother. Different forms of birth are ovipary, vivipary or ovovivipary.
Two words used to describe human offspring while in utero are embryo and fetus.
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Two words used to describe human offspring while in utero are embryo and fetus.
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Myelin is an electrically insulating phospholipid layer that surrounds the axons of many neurons. It is an outgrowth of glial cells: Schwann cells supply the myelin for peripheral neurons while oligodendrocytes supply it to those of the central nervous system.
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Cortex (Latin: "bark", "rind", "shell" or "husk") may mean:
In anatomy:
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In anatomy:
- Cortex (anatomy), the outermost or superficial layer of an organ, and especially in the brain:
- the Cerebral cortex (usually just
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'''Brodmann may refer to:
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- Korbinian Brodmann, German neurologist
- Brodmann area, a region in the brain cortex
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The olfactory system is the sensory system used for olfaction. Most mammals and reptiles have two distinct parts to their olfactory system: a main olfactory system and an accessory olfactory system.
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The lateral postcentral gyrus is a prominent structure in the parietal lobe of the human brain and an important landmark. It was initially defined from surface stimulation studies of Penfield, and parallel surface potential studies of Bard, Woolsey, and Marshall.
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Anterior cingulate cortex (ACC) is the frontal part of the cingulate cortex, which resembles a "collar" form around the corpus callosum, the fibrous bundle that relays neural signals between the right and left cerebral hemispheres of the brain.
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The inferior temporal gyrus is placed below the middle temporal sulcus, and is connected behind with the inferior occipital gyrus; it also extends around the infero-lateral border on to the inferior surface of the temporal lobe, where it is limited by the inferior sulcus.
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The dorsolateral prefrontal cortex (DL-PFC or DLPFC) is the last area (45th) to develop (myelinate) in the human cerebrum. A more restricted definition of this area describes it as roughly equivalent to Brodmann's areas 9 and 46,[1]
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