By Henri M. Duvernoy
This re-creation, like earlier ones, bargains an actual description of the anatomy of the human hippocampus dependent upon neurosurgical growth and the wealth of scientific imaging tools on hand. the 1st half describes the high-quality buildings of the hippocampus and is illustrated with new unique figures. A survey is then supplied of present innovations explaining the features of the hippocampus, and the exterior and inner hippocampal vascularization is exactly defined. The final and major a part of the ebook provides serial sections in coronal, sagittal, and axial planes; each one part is observed via a drawing to give an explanation for the MR 3T photographs. the hot variation can be enriched by means of a number of MRI perspectives of significant hippocampal ailments. This accomplished atlas of human hippocampal anatomy may be of curiosity to all neuroscientists, together with neurosurgeons, neuroradiologists, and neurologists.
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Additional resources for The Human Hippocampus: Functional Anatomy, Vascularization and Serial Sections with MRI
1 Learning and Memory It is generally admitted that the hippocampus has a critical role in learning and memory. Information arising from large isocortical zones converges to the entorhinal area and then to the hippocampus. Thus newly acquired items cross the hippocampal filter before being fixed in the isocortex. It is possible to distinguish the memory of new or recent items, which depends on the hippocampus (short-term memory), from that of old ones (long-term memory), which depends on the isocortex.
Rostrally, it is well defined by the superficial hippocampal sulcus, which can always be distinguished. The external digitations, anterior to the band of Giacomini, form two or three small, convex lobules separated by sagittal sulci (Fig. 25). These digitations are inverse images of the internal digitations (digitationes hippocampi), visible on the intraventricular aspect of the hippocampal head (Figs. 26, 68, 85B). The external and internal digitations are due to folding of the cornu Ammonis. These folds vary in thickness, as is frequent in cortical gyri in general.
The anterior segment is the lateral limit of the anterior perforated substance, the interpeduncular region, and the chiasmatic and interpeduncular cisterns. It is related to the oculomotor nerve, the first segment of the middle cerebral artery, the posterior communicating artery, the tuber, and the hypophysial stalk (Figs. 30, 31, 40). The posterior segment is situated near the crus cerebri, but is separated from it by the narrow crural cistern (Figs. 30, 31, 41, 103F, 104E). 4 Hippocampal Tail Numerous vessels cross the uncal surface (Yasargil1984).