| CA | anterior commissure [Lat. commissura anterior]; calcium antagonist; California [rabbit]; cancer; Can... |
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| commissura hippocampi | The triangular subcallosal plate of commissural fibres resulting from the converging of the right and left fornix bundles which exchange numerous fibres and which curve back in the contralateral fornix to end in the hippocampus of the opposite side. Synonym: commissura hippocampi, commissure of fornix, delta fornicis, hippocampal commissure, psalterium, transverse fornix. (05 Mar 2000) |
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| alveus hippocampi | A thin white band of fornix fibres covering the ventricular surface of the hippocampus. Synonym: alveus hippocampi. (05 Mar 2000) |
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| pes hippocampi | <anatomy> The anterior thickened extremity of the hippocampus. Synonym: pes hippocampi, digitationes hippocampi. (05 Mar 2000) |
| rudimentum hippocampi | A thin layer of gray matter on the dorsal surface of the corpus callosum in which the medial and lateral longitudinal stria lie embedded. The indusium griseum is a rudimentary component of the hippocampus, continuous caudally around the splenium of the corpus callosum with the fasciolar gyrus, a slender convolution in turn continuous with the dentate gyrus of the hippocampus; rostrally the indusium griseum curves around the genu and rostrum of corpus callosum and extends ventralward to the olfactory trigone as the tenia tecta or rudimentum hippocampi, hidden in the depth of the posterior parolfactory sulcus that marks the anterior border of the subcallosal gyrus or precommissural septum. Synonym: supracallosal gyrus. (05 Mar 2000) |
| sulcus hippocampi | A shallow groove between the dentate gyrus and the parahippocampal gyrus; the remains of a fissure extending deep into the hippocampus between Ammon's horn and the dentate gyrus which becomes obliterated during foetal development. Synonym: sulcus hippocampi, dentate fissure, fissura dentata, fissura hippocampi, hippocampal fissure. (05 Mar 2000) |
| digitationes hippocampi | Synonym: foot of hippocampus. Origin: Mod. L. Pl. Of digitatio (05 Mar 2000) |
| tenia hippocampi | A narrow sharp-edged crest of white fibre matter, continuous with the alveus hippocampi, attached to the medial border of the hippocampus; composed of efferent fibres of the hippocampus that form the fornix, fibres of the hippocampal commissure, and septohippocampal fibres. Synonym: corpus fimbriatum, tenia hippocampi. (05 Mar 2000) |
| fascia dentata hippocampi | Serrated strip of gray matter under the medial border of the hippocampus and in its depths. It is an archicortex which develops along the edge of the hippocampal fissure and which consists of molecular, granular, and polymorphic layers. The molecular layer is continuous with that of the hippocampus in the depths of the hippocampal fissure. (carpenter and sutin, human neuroanatomy, 8th ed, p626) (12 Dec 1998) |
| fimbria hippocampi | A narrow sharp-edged crest of white fibre matter, continuous with the alveus hippocampi, attached to the medial border of the hippocampus; composed of efferent fibres of the hippocampus that form the fornix, fibres of the hippocampal commissure, and septohippocampal fibres. Synonym: corpus fimbriatum, tenia hippocampi. (05 Mar 2000) |
| fissura hippocampi | A shallow groove between the dentate gyrus and the parahippocampal gyrus; the remains of a fissure extending deep into the hippocampus between Ammon's horn and the dentate gyrus which becomes obliterated during foetal development. Synonym: sulcus hippocampi, dentate fissure, fissura dentata, fissura hippocampi, hippocampal fissure. (05 Mar 2000) |
| pars intermedia commissura bulborum | A narrow median band that connects the two masses of erectile tissue (the bulbus vestibuli) on either side of the vaginal orifice. Synonym: pars intermedia commissura bulborum, commissura bulborum, intermediate part of vestibular bulb, pars intermedia bulborum. (05 Mar 2000) |
| commissura | Synonym: commissure. Origin: L. A joining together, seam, fr. Com-mitto, to send together, combine (05 Mar 2000) |
| commissura alba | A narrow band of white substance bordering on the anterior median fissure of the spinal cord in front of the anterior gray commissure, and consisting of nerve fibres crossing over from one half of the spinal cord to the other. Synonym: commissura alba, anterior white commissure, commissura ventralis alba, ventral white column. (05 Mar 2000) |
| commissura anterior | A round bundle of nerve fibres that crosses the midline of the brain near the anterior limit of the third ventricle. It consists of a smaller anterior part, the fibres of which pass in part to the olfactory bulbs, and a larger posterior part, which interconnects the left and right temporal lobes. Synonym: commissura anterior. (05 Mar 2000) |
| commissura anterior grisea | See: substantia intermedia centralis et lateralis. Commissura bulborum An alternate term for commissure of vestibular bulb. (05 Mar 2000) |
| commissura cinerea | The variable connection between the two thalamic masses across the third ventricle; absent in about 20% of human brains. Synonym: adhesio interthalamica, commissura cinerea, commissura grisea, intermediate mass, massa intermedia. (05 Mar 2000) |
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