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The most dramatic symptom of argyria is that the skin turns blue or blue-gray. It may take the form of generalized argyria or local argyria. Generalized argyria affects large areas over much of the visible surface of the body. Local argyria shows in limited regions of the body, such as patches of skin, parts of the mucous membrane or the ...
Note the bluish-purple discoloration of the fingernails, lips, eyelids, and nose, along with prominent nail clubbing. Central cyanosis may be due to the following causes: Central nervous system (impairing normal ventilation): Intracranial hemorrhage; Drug overdose (e.g., heroin) Generalized tonic–clonic seizure (GTCS) Respiratory system ...
Bluetongue disease. Bluetongue disease is a noncontagious, insect-borne, viral disease of ruminants, mainly sheep and less frequently cattle, [1] yaks, [2] goats, buffalo, deer, dromedaries, and antelope. It is caused by Bluetongue virus ( BTV ).
Gongylonema pulchrum infections are due to humans acting as accidental hosts for the parasite. There are seven genera of spirudia nematodes that infect human hosts accidentally: Gnathostoma, Thelazia, Gongylonema, Physaloptera, Spirocerca, Rictularia. The G. pulchrum parasite is a nematode worm of the order Spirurida.
The human nose is the first organ of the respiratory system. It is also the principal organ in the olfactory system . The shape of the nose is determined by the nasal bones and the nasal cartilages , including the nasal septum , which separates the nostrils and divides the nasal cavity into two.
Neoteny and heterochrony. blue represents types of paedomorphosis and red represents types of peramorphosis. Heterochrony is defined as “a genetic shift in timing of the development of a tissue or anatomical part, or in the onset of a physiological process, relative to an ancestor”. [11]
Its pupils are black and its eye color is a fluorescent blue-green. The bluntnose sixgill shark can grow to 5.5 m (18 ft),. A work from the 1880s stated that a bluntnose sixgill shark caught off Portugal in 1846 measured 8 m (26 ft). This specimen was originally reported in an 1846 work and said to be only 0.68 m (2.2 ft) long.
The dense human settlement of much of eastern Sichuan and the Han River valley of southern Shaanxi creates geographical separation between the three subspecies. Moupin golden snub-nosed monkey, Rhinopithecus roxellana roxellana. This subspecies is found in the mountainous areas flanking the Sichuan Basin from the west and north. According to ...
Bottlenose dolphins are toothed whales in the genus Tursiops. They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. [3] Molecular studies show the genus contains three species: the common bottlenose dolphin ( Tursiops truncatus ), the Indo-Pacific bottlenose dolphin ( Tursiops aduncus ), and Tamanend's ...
For other types of blowhole, see Blowhole (disambiguation). In cetology, the study of whales and other cetaceans, a blowhole is the hole (or spiracle) at the top of the head through which the animal breathes air. In baleen whales, these are in pairs. It is homologous with the nostril of other mammals, and evolved via gradual movement of the ...