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24-415: The Ogoki River is a narrow, deep, slow-moving, and anastomosing river, with high sediment content. Rapids occur where the river crosses bedrock shelves. The Speckled Trout Rapids, a particularly large set of rapids, is located between Harrogate and Patience Lake. An extensive delta and estuary system has developed where the river enters Ogoki Lake . The river, now mostly used for canoeing and fishing ,

48-444: A strangler fig around a host tree, with tendrils fusing together to form a mesh, is called anastomosing. In geology , veins of quartz (or other) minerals can display anastomosis. Ductile shear zones frequently show anastomosing geometries of highly- strained rocks around lozenges of less-deformed material. Molten lava flows sometimes flow in anastomosed lava channels or lava tubes . In cave systems, anastomosis

72-437: A connection may be normal (such as the foramen ovale in a fetus' heart ) or abnormal (such as the patent foramen ovale in an adult's heart); it may be acquired (such as an arteriovenous fistula ) or innate (such as the arteriovenous shunt of a metarteriole ); and it may be natural (such as the aforementioned examples) or artificial (such as a surgical anastomosis ). The reestablishment of an anastomosis that had become blocked

96-937: A large blood supply, thus helping regulate systemic blood flow . Surgical anastomosis occurs when segments of intestine , blood vessel, or any other structure are connected together surgically (anastomosed). Examples include arterial anastomosis in bypass surgery , intestinal anastomosis after a piece of intestine has been resected, Roux-en-Y anastomosis and ureteroureterostomy . Surgical anastomosis techniques include linear stapled anastomosis, hand sewn anastomosis, end-to-end anastomosis (EEA). Anastomosis can be performed by hand or with an anastomosis assist device. Studies have been performed comparing various anastomosis approaches taking into account surgical "time and cost, postoperative anastomotic bleeding, leakage, and stricture". Pathological anastomosis results from trauma or disease and may involve veins , arteries , or intestines . These are usually referred to as fistulas . In

120-618: A large part of the upper Ogoki to flow into Lake Nipigon and on to the Great Lakes . This diversion was intended to increase water flow for the Sir Adam Beck Hydroelectric Generating Stations at Niagara Falls , downstream of Lake Erie . 14,360 square kilometres (5,545 sq mi) of the Ogoki basin is diverted by a 15 metres (50 ft) high and 520 metres (1,700 ft) long dam at

144-415: A morphologically similar mycelial wave front that continues to grow and explore. The significant difference is that each septated unit is binucleate, containing two unfused nuclei , i.e. one from each parent that eventually undergoes karyogamy and meiosis to complete the sexual cycle. Also the term "anastomosing" is used for mushroom gills which interlink and separate to form a network. The growth of

168-429: Is a surgical technique used to make a new connection between two body structures that carry fluid, such as blood vessels or bowel. For example, an arterial anastomosis is used in vascular bypass and a colonic anastomosis is used to restore colonic continuity after the resection of colon cancer . A surgical anastomosis can be created using suture sewn by hand, mechanical staplers and biological glues , depending on

192-399: Is called a reanastomosis. Anastomoses that are abnormal, whether congenital or acquired, are often called fistulas . The term is used in medicine , biology , mycology , geology , and geography . Anastomosis: medical or Modern Latin, from Greek ἀναστόμωσις, anastomosis, "outlet, opening", Greek ana- "up, on, upon", stoma "mouth", "to furnish with a mouth". Thus the -stom- syllable

216-425: Is cognate with that of stoma in botany or stoma in medicine . An anastomosis is the connection of two normally divergent structures. It refers to connections between blood vessels or between other tubular structures such as loops of intestine . In circulatory anastomoses , many arteries naturally anastomose with each other; for example, the inferior epigastric artery and superior epigastric artery , or

240-666: Is the splitting of cave passages that later reconnect. Anastomosing rivers , anastomosing streams consist of multiple channels that divide and reconnect and are separated by semi-permanent banks formed of cohesive material, such that they are unlikely to migrate from one channel position to another. They can be confused with braided rivers based on their planforms alone, but braided rivers are much shallower and more dynamic than anastomosing rivers. Some definitions require that an anastomosing river be made up of interconnected channels that enclose floodbasins, again in contrast with braided rivers. Rivers with anastomosed reaches include

264-815: The Magdalena River in Colombia , the upper Columbia River in British Columbia , Canada, the Drumheller Channels of the Channeled Scablands of the state of Washington, US, and the upper Narew River in Poland . The term anabranch has been used for segments of anastomosing rivers. Braided streams show anastomosing channels around channel bars of alluvium . Surgical anastomosis A surgical anastomosis

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288-401: The liver in patients with portal hypertension , often resulting in hemorrhoids , esophageal varices , or caput medusae . In evolution , anastomosis is a recombination of evolutionary lineage. Conventional accounts of evolutionary lineage present themselves as the branching out of species into novel forms. Under anastomosis, species might recombine after initial branching out, such as in

312-578: The sandbar willow , along the riverbanks, and the ovate spikerush , found on an Ogoki Lake beach. It is a non-operating park, meaning that there are no facilities or services. Permitted activities include boating, canoeing, fishing, and hunting. Anastomosis#Geography and hydrology An anastomosis ( / ə ˌ n æ s t ə ˈ m oʊ s ɪ s / , pl. : anastomoses ) is a connection or opening between two things (especially cavities or passages) that are normally diverging or branching, such as between blood vessels , leaf veins , or streams . Such

336-473: The Waboose Falls (also known as Waboose Rapids), constructed in 1940-43. Together with another 3 control dams, this dam raises the water level by about 12 metres (40 ft), thereby creating Ogoki Reservoir (which is 70 kilometres (43 mi) long and covers an area of approximately 150 square kilometres (58 sq mi)). An average of about 4,000 cubic feet per second (110 m/s) is diverted to

360-522: The anterior and/or posterior communicating arteries in the Circle of Willis in the brain. The circulatory anastomosis is further divided into arterial and venous anastomosis. Arterial anastomosis includes actual arterial anastomosis (e.g., palmar arch , plantar arch ) and potential arterial anastomosis (e.g. coronary arteries and cortical branch of cerebral arteries ). Anastomoses also form alternative routes around capillary beds in areas that do not need

384-442: The bifurcating fungal hyphae can form true reticulating networks. By sharing materials in the form of dissolved ions , hormones , and nucleotides , the fungus maintains bidirectional communication with itself. The fungal network might begin from several origins; several spores (i.e. by means of conidial anastomosis tubes ), several points of penetration, each a spreading circumference of absorption and assimilation. Once encountering

408-415: The case of recent research that shows that ancestral populations along human and chimpanzee lineages may have interbred after an initial branching event. The concept of anastomosis also applies to the theory of symbiogenesis , in which new species emerge from the formation of novel symbiotic relationships. In mycology , anastomosis is the fusion between branches of the same or different hyphae . Hence

432-411: The cases of veins or arteries, traumatic fistulas usually occur between artery and vein. Traumatic intestinal fistulas usually occur between two loops of intestine (entero-enteric fistula) or intestine and skin (enterocutaneous fistula). Portacaval anastomosis , by contrast, is an anastomosis between a vein of the portal circulation and a vein of the systemic circulation , which allows blood to bypass

456-416: The circumstances. While an anastomosis may be end-to-end, equally it could be performed side-to-side or end-to-side depending on the circumstances of the required reconstruction or bypass . The term reanastomosis is also used to describe a surgical reconnection usually reversing a prior surgery to disconnect an anatomical anastomosis , e.g. tubal reversal after tubal ligation . Fashioning an anastomosis

480-652: The headwaters of the Little Jackfish River, a tributary of Lake Nipigon , and leaving about 1,000 cubic feet per second (28 m/s) to flow down the Ogoki River itself. This diversion increases the size of Lake Nipigon's watershed by almost 60%, and together with the Long Lake diversion of the Kenogami River , raises Lake Superior by an average of 2.1 centimetres (0.83 in). Although

504-427: The tip of another expanding, exploring self, the tips press against each other in pheromonal recognition or by an unknown recognition system, fusing to form a genetic singular clonal colony that can cover hectares called a genet or just microscopical areas. For fungi, anastomosis is also a component of reproduction. In some fungi, two different haploid mating types – if compatible – merge. Somatically , they form

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528-533: The water levels have improved in the Great Lakes, it has also caused a major drop in water levels and unnatural flooding in the Ogoki River. The Ogoki River Provincial Park protects a 140 kilometres (87 mi) long section of Ogoki River, from Ogoki Reservoir to the Thunder Bay-Cochrane boundary. It also includes Ogoki Lake in its entirety, as well as Kayedon, Harrogate, and Patience Lakes. It

552-416: Was established in 2004 and serves as an important recreational waterway, offering remote tourism and recreation opportunities such as angling, hunting, wildlife viewing, and backcountry canoe camping . Significant features of the park include a diversity of upland and wetland vegetation, as well as a number of glacial features . It also has a number of plant species that are of regional significance, such as

576-601: Was part of a canoe route from Hudson Bay to Lake Superior : via James Bay, Albany River, Ogoki River, portage to Ombabika River, Lake Nipigon, Nipigon River , and finally Lake Superior. Portions of the river are protected in the Wabakimi Provincial Park and Ogoki River Provincial Park. The following fish species have been identified in Ogoki River system: In 1943, the Hydro-Electric Power Commission of Ontario diverted

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