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The germinal matrix is the source of both neurons and glial cells and is most active between 8 and 28 weeks gestation. It is a fragile portion of the brain that may be damaged leading to a germinal matrix hemorrhage (grade 1 intraventricular hemorrhage). Location/anatomy: The germinal matrix is next to the lateral ventricles (the "inside" of ...
The germinal matrix is the site of proliferating neuronal and glial precursors in the developing brain, which is located above the caudate nucleus, in the floor of the lateral ventricle, and caudothalamic groove. The germinal matrix contains a rich network of fragile thin-walled blood vessels.
The ganglionic eminence (GE) is a transitory structure in the development of the nervous system that guides cell and axon migration. [1] It is present in the embryonic and fetal stages of neural development found between the thalamus and caudate nucleus.
The development of the nervous system, or neural development (neurodevelopment), refers to the processes that generate, shape, and reshape the nervous system of animals, from the earliest stages of embryonic development to adulthood.
The Allegheny Group, often termed the Allegheny Formation, [2] is a Pennsylvanian-age geological unit in the Appalachian Plateau.It is a major coal-bearing unit in the eastern United States, extending through western and central Pennsylvania, western Maryland and West Virginia, and southeastern Ohio.
Upon entering Coal Township, Shamokin Creek crosses Pennsylvania Route 61 and continues flowing north, passing through a water gap in Big Mountain. The creek continues heading north near Pennsylvania Route 61 and passes along the border of Tharptown/Uniontown, Pennsylvania. Here, it receives Trout Run from the right and turns west for several ...
In biology, matrix (pl.: matrices) is the material (or tissue) in between a eukaryotic organism's cells. The structure of connective tissues is an extracellular matrix. Fingernails and toenails grow from matrices. It is found in various connective tissues. It serves as a jelly-like structure instead of cytoplasm in connective tissue.
Location of the dentate gyrus and relations to other structures. The dentate gyrus, like the hippocampus, consists of three distinct layers: an outer molecular layer, a middle granule cell layer, and an inner polymorphic layer. [14] (In the hippocampus the outer layer is the molecular layer, the middle layer is the pyramidal layer, and the ...