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In lungfish and tetrapods, the renal portal vein is joined by a vein traveling upwards from the abdominal vein, [4] which can bring venous blood from the hind limbs and ventral body wall into the renal portal system, or alternatively, enable blood from the tail and groin to pass into the hepatic portal system, already served by blood from the gut, via the hepatic portal vein, and from the hind ...
Avian influenza, also known as avian flu or bird flu, is a disease caused by the influenza A virus, which primarily affects birds but can sometimes affect mammals including humans. [1] Wild aquatic birds are the primary host of the influenza A virus, which is enzootic (continually present) in many bird populations.
[67] [3] The medulla of the each lobule is shaped like a cone, and, unlike mammals, it is not subdivided into the inner and outer regions, while structurally it is similar to the outer medulla of the mammalian kidney. [67] In the avian kidney, the renal pelvis is absent, [82] and each lobule has a separate branch to the ureter. [3]
The kidney is well supplied with lymphatic vessels, [114] which remove excess fluid with substances and macromolecules dissolved in it from the interstitium that fills the space between the tubules and blood vessels. [115] [116] The anatomy of the lymphatic system of the kidney is similar between mammals. [117]
A dairy worker in Texas has tested positive for avian flu, representing only the second-ever human case in the US. H5N1, commonly known as bird flu, has been spreading rapidly across cattle in the ...
The human hepatic portal system delivers about three-fourths of the blood going to the liver.The final common pathway for transport of venous blood from spleen, pancreas, gallbladder and the abdominal portion of the gastrointestinal tract [2] (with the exception of the inferior part of the anal canal and sigmoid colon) is through the hepatic portal vein.
Existing studies show that H10 influenza viruses are present in a wide range of domestic and wild avian species, as well as in mammals, showing potential for adaptation. [2] H10N3 has been isolated across a wide geographic distribution, including in species such as domestic poultry (chickens), [ 2 ] ducks, [ 3 ] [ 4 ] other waterfowl, and ...
Poultry litter causing the bovine cases of avian flu is considered "very unlikely, though not impossible" wrote Veronika Pfaeffle, in a joint statement from the U.S. Department of Agriculture and ...