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The signs and symptoms of diverticular disease stem from inflammation and irritation of the colonic tissues, which can manifest as: Abdominal pain that may be persistent for days. Pain is typically located in the left lower quadrant. However, in people of Asian descent, pain is reported more on the right side. [3] Diarrhea; Constipation; Nausea ...
Sucking lice (Anoplura, formerly known as Siphunculata) have around 500 species and represent the smaller of the two traditional superfamilies of lice. As opposed to the paraphyletic chewing lice, which are now divided among three suborders, the sucking lice are monophyletic. The Anoplura are all blood-feeding ectoparasites of mammals.
Diverticulosis is the condition of having multiple pouches (diverticula) in the colon that are not inflamed. These are outpockets of the colonic mucosa and submucosa through weaknesses of muscle layers in the colon wall. [1] Diverticula do not cause symptoms in most people. [2]
A 2012 study found that a high-fiber diet and increased frequency of bowel movements are associated with greater, rather than lower, prevalence of diverticulosis. [26] There is no evidence to suggest that the avoidance of nuts and seeds prevents the progression of diverticulosis to an acute case of diverticulitis.
Ticks and lice form another large group of invertebrate vectors. The bacterium Borrelia burgdorferi, which causes Lyme Disease, is transmitted by ticks and members of the bacterial genus Rickettsia are transmitted by lice. For example, the human body louse transmits the bacterium Rickettsia prowazekii which causes epidemic typhus.
The cause of segmental colitis associated with diverticula is unknown. Several factors may influence the development of the disease, such as local colonic ischemia, fecal stasis, or mucosal prolapse. Several factors may influence the development of the disease, such as local colonic ischemia, fecal stasis, or mucosal prolapse.
Sheep and goats are both small ruminants with cosmopolitan distributions due to their being kept historically and in modern times as grazers both individually and in herds in return for their production of milk, wool, and meat. [1] As such, the diseases of these animals are of great economic importance to humans.
Lice inhabiting birds, however, may simply leave their eggs in parts of the body inaccessible to preening, such as the interior of feather shafts. Living louse eggs tend to be pale whitish, whereas dead louse eggs are yellower. [5] Lice are exopterygotes, being born as miniature versions of the adult, known as nymphs. The young moult three ...