3 (anatomy) a long narrow slit or groove that divides an organ into lobes v : break into fissures or fine cracks
- first-, third-person singular indicative present of fissurer
- first-, third-person singular subjunctive present of fissurer
- second-person singular imperative of fissurer
In anatomy, fissure (Latin fissura, Plural fissurae) is a groove, natural division, deep furrow, cleft, or tear in various parts of the body.
AnatomyVarious types of anatomical fissure are:
- 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.
- Calcarine fissure: extends from the occipital of the 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 lobes.
- 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 lungs.
- 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.
Abnormal fissureFissure can also mean unnatural tract or ulcer, most commonly found in the anus. One of the most common types of fissure is anal fissure.
- Fissure vent: a volcanic vent that does not include explosive activity.
fissure in German: Fissur
fissure in Spanish: Fisura
fissure in Dutch: Fissuur
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