Long-term muscle use requires the delivery of oxygen and glucose to the muscle fiber to allow aerobic respiration to occur, producing the ATP required for muscle contraction. If the respiratory or circulatory system cannot keep up with demand, then energy will be generated by the much less efficient anaerobic respiration.
Then, Nicaragua, as well as Costa Rica, El Salvador, Guatemala and Honduras formed the United Provinces of Central America, but that federation quickly dissolved, and Nicaragua became an independent republic in 1838.
Nicaragua and Costa Rica are both part of Central America, a subcontinent, which in itself is the southernmost portion of the North American continent.orth America. It is North America all the way to the Panama/Columbia border. There is no continent of Central America - that is just an area designation for the region betw â¦ een Mexico and South America.