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The subgranular zone (in rat brain). (A) Regions of the dentate gyrus: the hilus, subgranular zone (sgz), granule cell layer (GCL), and molecular layer (ML). Cells were stained for doublecortin (DCX). (B) Closeup of subgranular zone, located between the hilus and GCL, [33] a site of adult neurogenesis. Phenotypes of proliferating cells in the ...
The dentate forms the largest pathway between the cerebellum and the remainder of the brain. [1] It is the largest and most lateral of the four pairs of deep cerebellar nuclei , the others being the globose and emboliform nuclei, which together are referred to as the interposed nucleus , and the fastigial nucleus.
The MNTN is located in the brainstem, more specifically (sources vary) spanning the length of the midbrain [2] /in the caudal midbrain and rostral pons. [1] It is situated (sources vary) near [ 1 ] /within [ 2 ] the periaqueductal gray , lateral to the cerebral aqueduct .
The hippocampus is a structure in the brain that has been associated with various memory functions. It is part of the limbic system, and lies next to the medial temporal lobe. It is made up of two structures, the Ammon's Horn, and the Dentate gyrus, each containing different types of cells. [1]
The primary teeth typically erupt in the following order: (1) central incisor, (2) lateral incisor, (3) first molar, (4) canine, and (5) second molar. [45] As a general rule, four teeth erupt for every six months of life, mandibular teeth erupt before maxillary teeth, and teeth erupt sooner in females than males. [ 46 ]
Amelogenesis is the formation of enamel on teeth and begins when the crown is forming during the advanced bell stage of tooth development after dentinogenesis forms a first layer of dentin. Dentin must be present for enamel to be formed. Ameloblasts must also be present for dentinogenesis to continue.
[2] It has been shown that odontoblasts secrete the extracellular matrix protein reelin. [3] [4] [5] A pulpal A-delta (noxious, short sharp pain) nerve fibre is either wrapped around the base of this process, or travels a short way into the dentinal tubule with the odontoblast process (max ~0.1 mm) This process lies in the dentinal tubule. In ...
It is located primarily in the most rostral portions of the superior temporal gyrus and the middle temporal gyrus. Cytoarchitecturally it is bounded caudally by the inferior temporal area 20 , the middle temporal area 21 , the superior temporal area 22 and the ectorhinal area 36 (Brodmann-1909).