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The calcarine sulcus (or calcarine fissure) is an anatomical landmark located at the caudal end of the medial surface of the brain of humans and other primates. Its name comes from the Latin "calcar" meaning "spur". It is very deep, and known as a complete sulcus.
Axial sulcus develops in the long axis of a rapidly growing homogeneous area e.g. postcalcarine sulcus in the long axis of the striate area. Operculated sulcus separates by its lips into two areas and contains a third area in the walls of the sulcus e.g. lunate sulcus is an operculated sulcus, separating the striate and parastriate areas.
In biological morphology and anatomy, a sulcus (pl.: sulci) is a furrow or fissure (Latin fissura, pl.: fissurae). It may be a groove, natural division, deep furrow, elongated cleft, or tear in the surface of a limb or an organ, most notably on the surface of the brain , but also in the lungs , certain muscles (including the heart ), as well as ...
The cuneus is bounded anteriorly by the parieto-occipital sulcus and inferiorly by the calcarine sulcus. Function. The cuneus ...
The calcar avis, (calcarine spur) previously known as the hippocampus minor, [1] is an involution of the wall of the lateral ventricle's posterior cornu produced by the calcarine fissure. [ 2 ] It is sometimes visible on ultrasonogram [ 3 ] and can resemble a clot .
The primary visual cortex (V1) is located in and around the calcarine fissure in the occipital lobe.Each hemisphere's V1 receives information directly from its ipsilateral lateral geniculate nucleus that receives signals from the contralateral visual hemifield.
The primary part of the visual cortex, (V1), is located in the calcarine sulcus, and is the first cortical area involved in visual processing. It receives visual input from the lateral geniculate nucleus, which is located in the thalamus.
Calcarine sulcus, to the cuneus and lingual gyrus and the back part of the convex surface of the occipital lobe; Parieto-occipital sulcus, to the cuneus and the precuneus; Splenial, or the posterior pericallosal branch, sometimes anastomoses with the anterior cerebral artery (ACA), and may not be present if the ACA wraps around the corpus callosum