Fissure

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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.

Contents 1 Anatomy 1.1 Brain 1.2 Skull 1.3 Spinal cord 1.4 Lung 1.5 Liver 1.6 Other 2 Abnormal fissure 3 Other fissures 4 See also

[edit] Anatomy

Various types of anatomical fissure are:

[edit] 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.
• 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 Rolando'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.

[edit] Skull

• Auricular fissure: found in the temporal bone
• Pterygomaxillary fissure
• Sphenoidal fissure: separates the wings and the body of the sphenoid bone.

liver shoes surface nodulity with widened fissures.

[edit] Spinal cord

• ventral median fissure

[edit] Lung

• oblique fissure of rt & lf lung
• horizontal fissure of right lung

[edit] Liver

• fissure for ligamentum teres hepatis
• fissure for ligamentum venosum

[edit] Other

• Henle's fissure: the connective tissue between the muscle fibers of the heart.
• Palpebral fissure: separates the upper and lower eyelids.

[edit] 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.

[edit] Other fissures

• Fissure vent: a volcanic vent that does not include explosive activity.

Look up fissure in Wiktionary, the free dictionary.

[edit] See also

• Sulcus (anatomy)