layers of hippocampus

(redirected from pyramidal layer)

layers of hippocampus

[TA]
four layers formed by cells and cell processes; they are, beginning at the alveus and ventricular surface: the oriens layer [TA] (stratum oriens [TA]), which contains basal dendrites and axon collaterals of the pyramidal cells; the pyramidal layer [TA] (stratum pyramidale [TA]), which contains the somata of the large pyramidal cells of the hippocampus; the radiant layer [TA] (stratum radiatum [TA]), which contains the branching dendrites of the pyramidal cells and recurrent axon collaterals of the pyramidal cells; and the lacunar-molecular layer [TA] (stratum moleculare et substratum lacunosum [TA]), which contains the distal dendrites and some of the incoming axons of the preforant pathway.
Synonym(s): strata hippocampi [TA]
References in periodicals archive ?
Additionally, A[beta] deposits (Congo red), GFAP immunoreactivity (immunohisto-chemistry), and neurodegenerative changes in the hippocampal pyramidal layer (Nissl) were examined as measures of [A[beta].
1-42]-provoked degeneration was assessed by measuring the extent of A[beta] deposits (Congo red), GFAP immunoreactivity (immunohistochemistry), and neurodegenerative changes in the hippocampal pyramidal layer (Nissl).
Neurodegeneration in the hippocampal CA1 pyramidal layer
flavicollis had a significant asymmetry in the deep subiculum in which the pyramidal layer is significantly larger in the left hippocampus compared to the right (24).
This feature was limited mainly to the medial dorsal part of the telencephalon, subdivision 2 (Dm2; Figure 2a), and the pyramidal layer of the mesencephalic stratum griseum central (SGC; Figure 2b), which showed consistent dark axonal processes.