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The Hedgehog signaling pathway is a signaling pathway that transmits information to embryonic cells required for proper cell differentiation. Different parts of the embryo have different concentrations of hedgehog signaling proteins. The pathway also has roles in the adult. Diseases associated with the malfunction of this pathway include cancer ...
A possible cause of WHS is a genetic flaw allowing a virus to attack the hedgehog's nervous system. [23] The nose can display a variety of symptoms of a troubled hedgehog, especially respiratory illnesses, such as pneumonia. In many cases, the form of pneumonia that affects hedgehogs is bacterial in nature.
If a hedgehog is struck when that glottis is open, air simply flows out of the lungs and out of the body. But if the glottis is closed when the animal is struck, that air has nowhere to go, and the lung tissue can rupture. It's like a balloon popping. [...] This trauma can also cause damage to the muscles in between a hedgehog's ribs". [5]
Early recordings from the olfactory bulbs of hedgehogs by Lord Edgar Adrian, who previously won the 1932 Nobel Prize along with Sir Charles Sherrington for their work on the functions of neurons, revealed that neural oscillations within the hedgehog olfactory bulb were entrained to the respiratory cycle. [24]
Cloaca of a red-tailed hawk. A cloaca (/ k l oʊ ˈ eɪ k ə / ⓘ kloh-AY-kə), pl.: cloacae (/ k l oʊ ˈ eɪ s i / kloh-AY-see or / k l oʊ ˈ eɪ k i / kloh-AY-kee), or vent, is the rear orifice that serves as the only opening for the digestive (), reproductive, and urinary tracts (if present) of many vertebrate animals.
The SHH gene affects several major organ systems, such as the nervous system, cardiovascular system, respiratory system and musculoskeletal system. [37] [38] Mutations in the SHH gene can cause malformation of components of these systems, which can result in major problems in the developing embryo.
The Czech hedgehog is an antitank defense that, for Americans and Russians alike, evokes images of World War II. Moscow has a monument of Czech hedgehogs to mark the farthest that Nazi soldiers ...
The hedgehog's back contains two large muscles that direct the quills. Some light-weight desert hedgehog species with fewer spines are more likely to flee or attack, ramming an intruder with the spines, rolling up only as a last resort. Hedgehogs are primarily nocturnal, with some species also active during the day. Hedgehogs sleep for a large ...