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  1. en.wikipedia.org › wiki › ArthropodArthropod - Wikipedia

    3 giorni fa · Arthropods ( / ˈɑːrθrəpɒd / ARTH-rə-pod) [20] are invertebrates in the phylum Arthropoda. They possess an exoskeleton with a cuticle made of chitin, often mineralised with calcium carbonate, a body with differentiated ( metameric) segments, and paired jointed appendages. In order to keep growing, they must go through stages of moulting ...

  2. en.wikipedia.org › wiki › CtenophoraCtenophora - Wikipedia

    3 giorni fa · Ctenophore nerve cells and nervous system have different biochemistry as compared to other animals. For instance, they lack the genes and enzymes required to manufacture neurotransmitters like serotonin , dopamine , nitric oxide , octopamine , noradrenaline , and others, otherwise seen in all other animals with a nervous system, with the genes coding for the receptors for each of these ...

  3. 1 giorno fa · Keith Noel Emerson (2 November 1944 – 11 March 2016) was an English keyboardist, songwriter, composer and record producer. He played keyboards in a number of bands before finding his first commercial success with the Nice in the late 1960s. [1] He became internationally famous for his work with the Nice, which included writing rock ...

  4. 1 giorno fa · Recurrent laryngeal nerve in giraffes. The recurrent laryngeal nerve is a fourth branch of the vagus nerve, which is a cranial nerve. In mammals, its path is unusually long. As a part of the vagus nerve, it comes from the brain, passes through the neck down to heart, rounds the dorsal aorta and returns up to the larynx, again

  5. en.wikipedia.org › wiki › PainPain - Wikipedia

    2 giorni fa · Medication. Analgesic. Pain is a distressing feeling often caused by intense or damaging stimuli. The International Association for the Study of Pain defines pain as "an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage."

  6. en.wikipedia.org › wiki › DiazepamDiazepam - Wikipedia

    1 giorno fa · Diazepam is an equimolar mixture and it was shown through CD spectra in serum protein solutions, that the 'P'-conformer is preferred by α1-acid glycoprotein binding. The drug diazepam occurs as a pale yellow-white crystalline powder without distinctive smell and has a low molecular weight (MW = 284,74 g/mol [15] ).

  7. en.wikipedia.org › wiki › AnxietyAnxiety - Wikipedia

    3 giorni fa · The neurotransmitters signal to the nervous system of the gastrointestinal tract, and those signals will be carried to the brain through the vagus nerve or the spinal system. This is demonstrated by the fact that altering the microbiome has shown anxiety- and depression-reducing effects in mice, but not in subjects without vagus nerves.