Notable historical fissure vent eruptions?

Dec 31, 2024 ... Common causes of an anal fissure include constipation and straining or passing hard or large stools during a bowel movement. Anal fissures ... Subpleural nodules are more easily seen in the fissures, giving rise to what is called the nodular fissure pattern. These three diseases affect the pleural ... Jan 22, 2013 ... Anal fissures usually heal within a few weeks but those that have not healed after 4–6 weeks are called chronic fissures. Dec 6, 2024 ... Fissure volcanoes are produced by eruptions that occur along elongated fissures versus at a central vent. Fissure eruptions occur when magma- ... Find out what's coming up on air, Listing of previous NOVA Web sites, NOVA's ... Fissure Diagram of a volcano. Fissure On volcanoes, a fissure is an ... Aug 23, 2023 ... What is anal fissure caused by? · Constipation: Large, hard feces (stools) are more likely to result in lesions in the anal area during a bowel ... A fissure vent, also known as a volcanic fissure, eruption fissure or simply a fissure, is a linear volcanic vent through which lava erupts, usually without ... Apr 7, 2025 ... What is an anal fissure? A painful tear in the lining of the anal canal. Ada Health provides insights on causes, symptoms, and treatments ... What is an anal fissure? An anal fissure is a small tear in the skin lining the back passage (anus). Although the tear is very small ... Washington University Colorectal Surgeons answer patient questions regarding anal fissure. What is an anal fissure? An anal fissure is a cut o...