A manual of anatomy . uncus is a hook-like, isolated portion of the hippocampalgyre just behind the gyrus ambiens upon the ventral surface of thebrain just lateral to the frontal portion of the pons. The dentate gyre is a notched band of gray nerve tissue in the 428 THE NERVE SYSTEM depths of the hippochampal fissure that separates it from the hippo-campal gyre. On the other side is a fissure that separates it fromthe fimbria, in the depths of which is a narrow band, the fasciolacinerea; this is a narrow extension of the uncus to the splenial portionof the callosum, where it fuses with the den
A manual of anatomy . uncus is a hook-like, isolated portion of the hippocampalgyre just behind the gyrus ambiens upon the ventral surface of thebrain just lateral to the frontal portion of the pons. The dentate gyre is a notched band of gray nerve tissue in the 428 THE NERVE SYSTEM depths of the hippochampal fissure that separates it from the hippo-campal gyre. On the other side is a fissure that separates it fromthe fimbria, in the depths of which is a narrow band, the fasciolacinerea; this is a narrow extension of the uncus to the splenial portionof the callosum, where it fuses with the dentate gyre. The dentategyre seems to be a continuation of the indusium that extends ven-trally around the uncus as the frenulum Giacomini. The gyrus Andra Retzii is a small, oval, corrugated portion of thehippochampal gyre just behind the splenium of the corpus callosum. The corpora alhicantia are two, small, rounded, white structures,on the ventral surface of the brain just caudad of the optic chiasm Indusium i;Sinai. 3ub - callosaJ yy^rea parol factor/a. 6yruj Anc/rn&-B^lzii Bulb Tract i„f^^j,^, 3tT-ia. DenTaTe yyfi. US a/btcan3 UrJcus. Frenulum pyrus ambieryi-Oyrvs semflunar/s. Fig. 311.—Schematic representation of the olfactory pathway. (intercrural space) and near the midline. Their white color is dueto the myelinated nerve fibers of the fornix that end here in thecentral gray nerve tissue. This gray tissue is usually arranged astwo nuclear masses in each body. The anterior commissure is seen in the frontal wall of the thirdventricle, as it courses from side to side. It is usually a small bundleof nerve fibers of which the frontal portion belongs to the olfactorypathway. It connects the uncus of the two sides with each other inaddition to containing the pathway fibers from the bulb. The septum pellucidum consists of two layers enclosing a portion ofthe early intercerebral cleft, during the formation of the space is the so-ca
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthumananatomy, bookyea
