fissure


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Related to fissure: piles, fistula

fissure

1. Anatomy a narrow split or groove that divides an organ such as the brain, lung, or liver into lobes
2. a small unnatural crack in the skin or mucous membrane, as between the toes or at the anus
3. a minute crack in the surface of a tooth, caused by imperfect joining of enamel during development

fissure

[′fish·ər]
(geology)
A high, narrow cave passageway.
An extensive crack in a rock.
(metallurgy)
A small cracklike discontinuity with a slight opening or displacement of the fracture surfaces.
References in periodicals archive ?
Summary: Fact.MR has announced the addition of the " Fissure Sealants Market Forecast, Trend Analysis & Competition Tracking - Global Market insights 2018 to 2028"report to their offering.
The human orbit is related to the middle cranial fossa through various canals and openings, such as optic canal and superior orbital fissure. These structures are mostly available; however the Warwick's foramen and metoptic canal are less frequent [1-3].
An anal fissure is a small tear in the tissue that lines the anus, which can cause pain, sphincter spasms, and bleeding.
In the treatment of acute anal fissure where a speedy and effective treatment is preferred, nitroglycerin and calcium channel blockers, such as diltiazem, are also used as first-line agents in addition to conservative treatments, such as fiber-rich diet and warm sitz baths.
Field observations indicate that mining-induced ground fissure (MIGF) occur in the mountainous surface during the process of coal exploitation.
The tectonic movement has created a crack in the desert that could house a new ocean in the future.The fissure, located in Ethiopia, has reached lengths of 60 kilometers in recent years and sealed itself with 2.5 cubic kilometers of molten rock, as volcanoes are coming alive and erupt on the surface.
The branch for segment V (A05.8.01.047) (10 mm diameter) emerged from the left portal vein in 21 % of cases, it emerged from the right portal vein in 79 %; this segmental branch, after deepening 2 cm in its segmental parenchyma gave anterior, lateral, posterior and medial branches distributed between the right portal fissure (A05.8.01.036) and the main portal fissure (A05.8.01.035) from the lower border of the liver (A05.8.01.024) to the inferior vena cava from behind; the medial branches reached higher in the hepatic dome.
Pit and fissure sealants have been applied for the prevention of occlusal caries since the 1970s (5-7).
Objective: To compare fissure healing and complications in chronic anal fissure with use of lateral anal sphicterotomy and 0.2% GTN.
From Figure 3(b), it can be seen that the peak strain of Group B was greater than that of Group A at the same fissure angle.