Fissure 372131 220896160 2008-06-22T03:13:29Z Blanchardb 5311630 Reverted edits by [[Special:Contributions/65.67.176.29|65.67.176.29]] to last version by Squids and Chips (using [[WP:HG|Huggle]]) {{otheruses}} In [[anatomy]], '''fissure''' ([[Latin]] ''fissura'', [[Plural]] ''fissurae'') is a groove, natural division, deep furrow, cleft, or tear in various parts of the body. ==Anatomy== Various types of anatomical fissure are: ===Brain=== *''[[Fissure of Bichat]]'': found below the [[corpus callosum]] in the [[cerebellum]] of the [[brain]]. *''[[Broca's fissure]]'': found in the third left frontal fold of the brain. *''[[Burdach's fissure]]'': connects the brain's insula and the inner surface of the [[Operculum (brain)|operculum]]. *''[[Calcarine fissure]]'': extends from the occipital of the [[telencephalon|cerebrum]] to the occipital fissure. *''[[Callosomarginal fissure]]'': found in the mesial surface of the cerebrum. *''[[Central fissure]] or [[Ronaldo's fissure]]'': separates the brain's frontal and [[parietal lobe]]s. *''[[Clevenger's fissure]]'': found in the inferior temporal lobe of the brain *''[[Collateral fissure]]'': found in the inferior surface of the cerebrum. *''[[Hippocampal fissure]]'': a fissure that extends from the brain's corpus callosum to the tip of the temporal lobe. *''[[Horizontal fissure]] or [[Transverse fissure]]'': found between the cerebrum and the cerebellum. Transverse fissure is also found in the [[liver]] and [[lung]]s. *''[[Occipitoparietal fissure]]'': found between the occipital and parietal lobes of the brain. *''[[Fissure of Sylvius]]'': separates the frontal and parietal lobes of the brain from the temporal lobe. *''[[Wernicke's fissure]]'': separates the brain's temporal and parietal lobes from the occipital lobe. *''[[Zygal fissure]]'': found in the cerebrum. ===Skull=== *''[[Auricular fissure]]'': found in the [[temporal bone]] *''[[Pterygomaxillary fissure]]'' *''[[Sphenoidal fissure]]'': separates the wings and the body of the [[sphenoid]] [[bone]]. ===Liver=== *''[[Longitudinal fissure]]'': found in the lower surface of the [[liver]], also a fissure that separates the right and left hemispheres of the cerebrum. *''[[Portal fissure]]'': found in the under-surface of the liver. *''[[Umbilical fissure]]'': found in front of the liver. ===Other=== *''[[Henle's fissure]]'': the connective tissue between the muscle fibers of the [[heart]]. *''[[Palpebral fissure]]'': separates the upper and lower [[eyelid]]s. ==Abnormal fissure== Fissure can also mean unnatural tract or ulcer, most commonly found in the [[anus]]. One of the most common types of fissure is [[anal fissure]]. ==Other fissures== *''[[Fissure vent]]'': a volcanic vent that does not include explosive activity. {{wiktionary}} ==See also== * [[Sulcus (anatomy)]] [[Category:Anatomy]] [[de:Fissur]] [[es:Fisura]] [[nl:Fissuur]]