By Henri M. Duvernoy
This re-creation, like past ones, bargains an exact description of the anatomy of the human hippocampus dependent upon neurosurgical growth and the wealth of clinical imaging equipment on hand. the 1st half describes the effective constructions of the hippocampus and is illustrated with new unique figures. A survey is then supplied of present options explaining the services of the hippocampus, and the exterior and inner hippocampal vascularization is exactly defined. The final and major a part of the booklet provides serial sections in coronal, sagittal, and axial planes; every one part is followed by way of a drawing to provide an explanation for the MR 3T photos. the hot version is usually enriched by way of a number of MRI perspectives of significant hippocampal illnesses. This accomplished atlas of human hippocampal anatomy should be of curiosity to all neuroscientists, together with neurosurgeons, neuroradiologists, and neurologists.
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Additional info for The Human Hippocampus: Functional Anatomy, Vascularization and Serial Sections with MRI
The delayed neuronal death appearing in CA1 can be avoided experimentally by the previous destruction of CA3, the current explanation for which is that glutaminergic synapses of Schaffer collaterals originating in CA3 may have a toxic effect on CA1 during anoxia (Onodera et al. 1986). Thus blockage of synaptic terminals on a neuron might protect it from the consequences of anoxia (Johansen et al. 1984; Rothman 1984). The toxic excitatory action of the glutaminergic neurons ofCA3 on CA1 may be due to a lesion of GABAergic interneurons (Khazipov et al.
Others consider that the fimbria, fixed to the uncal apex (Figs. 27, 28), holds the uncus back during anterior development of the parahippocampal gyrus (Giacomini 1884; Mutel1923; Anthony 1947; Grasse 1972). Note that the uncus is especially well developed in humans and primates (Tilney 1939). The uncus is structurally divided into an anterior segment, belonging to the piriform lobe (see p. s), and a posterior segment, belonging to the hippocampus (Giacomini 1884; Mutel1923). 1 lntraventricular Part The intraventricular part is the anterior part of the arc of the hippocampus.
It should be noted that some of the results presented here are controversial and may thus be subject to discussion. However, it may be helpful for the reader to find an overview of the hippocam- pal functions, as currently described, even if some of these hypotheses are not considered to be valid ones in the future. The possible functions of the hippocampus are divided into four categories: (1) learning and memory, (2) regulation of emotional behavior, (3) certain aspects of motor control, and (4) regulation of hypothalamic functions.