The Human Brain During the Late First Trimester (Atlas of by Shirley A. Bayer;Joseph Altman
By Shirley A. Bayer;Joseph Altman
The fourth quantity within the Atlas of Human critical apprehensive method improvement sequence, The Human mind throughout the overdue First Trimester presents new information regarding positive aspects of the perinatal mind. It bargains with mind improvement through the past due first trimester (GW11-GW7.5). the key topic of this quantity is the id of stretches and patches (mosaics) of the NEP matrix alongside the hypertrophied telencephalic, diencephalic, mesencephalic, and rhombencephalic superventricles. Many putative migratory paths of younger nerons on their strategy to their settling websites also are pointed out. within the more youthful specimens, the mind sections are offered as they're embedded within the cranium and constructing facial buildings. The older specimens convey the onset of improvement of a few of the massive fiber tracts. just like the remainder of the sequence, it comprises photos of the total mind prepared in better half plates that come with elements: a wide, excessive answer black and white photo and a "ghost photo" of the photo with unabbreviated labels. it's a uncomplicated survey of the complicated structural approaches that take place in the course of human CNS improvement. This quantity can be bought as a part of the whole 5 quantity set.
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The fourth quantity within the Atlas of Human valuable worried approach improvement sequence, The Human mind in the course of the past due First Trimester presents new information regarding positive factors of the perinatal mind. It bargains with mind improvement throughout the overdue first trimester (GW11-GW7. 5). the main topic of this quantity is the identity of stretches and patches (mosaics) of the NEP matrix alongside the hypertrophied telencephalic, diencephalic, mesencephalic, and rhombencephalic superventricles.
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Extra resources for The Human Brain During the Late First Trimester (Atlas of Human Central Nervous System Development, Volume 4)
Sample text
Central gray Solitary nucleus? Raphe nuclear complex Inferior olivary complex Dentate nucleus Migrating and settling hemispheric Purkinje cells CEREBELLUM (HEMISPHERE) Rhombencephalic choroid plexus fourth ventricle (lateral recess) Anterior extramural migratory stream (pontine gray and pontine reticular neurons) Posterior intramural migratory stream (inferior olive neurons) Posterior extramural migratory stream (lateral reticular and external cuneate neurons cross midline) Dashed lines indicate staining and/or sectioning artifacts.
STF2 Upper cellular layer, the most superficial sojourn zone where cells translocate to the cortical plate. STF5 Deep cellular layer that is prominent during the first trimester, the first sojourn zone to appear outside the germinal matrix. STF3 Honeycomb trilaminar matrix (3a, 3b, 3c) of cells and fibers that is not present during the first trimester and is found in granular (sensory) cortices. STF6 Late-forming deep layer of callosal fibers outside the germinal matrix that is not present during the first trimester.
STF5/4 Future cingulate gyrus Cortical (cingulate) NEP and SVZ in c FUTURE PARACENTRAL LOBULE Median eminence/ posterior pituitary gland (neurohypophysis) Anterior pituitary gland (adenohypophysis, distal part) Lateral migratory stream? Future primary olfactory cortex Lateral olfactory tract 33 34 PLATE 10A GW11 Coronal CR 60 mm, Y1-59 Level 10: Section 439 LAYERS OF THE CORTICAL STRATIFIED TRANSITIONAL FIELD (STF) STF1 Superficial fibrous layer with an early developmental stage (t1) when many cells are migrating through it, followed by a late stage (t2) with sparse cells.