Fissure
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2008-06-22T03:13:29Z
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Reverted edits by [[Special:Contributions/65.67.176.29|65.67.176.29]] to last version by Squids and Chips (using [[WP:HG|Huggle]])
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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]]
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