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Vagusstoff (literally translated from German as "Vagus Substance") refers to the substance released by stimulation of the vagus nerve which causes a reduction in the heart rate. Discovered in 1921 by physiologist Otto Loewi , vagusstoff was the first confirmation of chemical synaptic transmission and the first neurotransmitter ever discovered.
At the 2008 Summer Olympics in Beijing, women competed in 27 sports over 137 events, compared to 28 men's sports in 175 events. [53] Several national women's professional sports leagues have been founded and are in competition, and women's international sporting events such as the FIFA Women's World Cup , Women's Rugby World Cup , and Women's ...
He called the unknown chemical Vagusstoff, naming it after the nerve and the German word for substance. It was later found that this chemical corresponded to acetylcholine . His experiment was iconic because it was the first to demonstrate the endogenous release of a chemical substance that could cause a response in the absence of electrical ...
Their investigation constitutes a major chapter in the history of physiology, biochemistry, and pharmacology. Adrenaline was the first hormone extracted from an endocrine gland and obtained in pure form, before the word hormone was coined. [2] Adrenaline was also the first hormone whose structure and biosynthesis was discovered.
American sports wouldn't be what they are today without the trailblazing black athletes of years past. From household names like Jackie Robinson to more recent history-makers like Vonetta Flowers ...
The history of sports in the United States reveals that American football, baseball, softball, and indoor soccer evolved from older British sports—rugby football, British baseball, rounders, and association football, respectively. Over time, these sports diverged significantly from their European origins, developing into distinctly American ...
Men can do the same,” says Alex Robboy, a sex therapist in Philadelphia. Essentially, kegel exercises are a way of contracting the muscles of the pelvic floor, which give you greater control and ...
A history and philosophy of sport and physical education: from ancient civilizations to the modern world (McGraw-Hill, 2014) Tsai, Chiung-Tzu Lucetta, and Lijun Zhou. "The history of sports and physical education in China." World leisure journal 59.4 (2017): 326-337. Wagner, Eric A. Sport in Asia and Africa: A Comparative Handbook (Greenwood ...