Best Answer: There are several nuclei involved, but they are primarily located in the medulla and pons, both of which are considered part of the brain stem. One very key region is called the pre-Botzinger complex. Neurons in this region have pace making firing patterns, which could create the oscillations that form the basis for inspiration and expiration. The link below is to a 1991 Science paper which identified this region: http://www.ncbi.nlm.nih.gov/pubmed/16830...
Queen Juliana of the Netherlands. Queen Juliana of the Netherlands. Princess Juliana, who has died, aged 94, of a lung infection, was Queen of the Netherlands from 1948 to 1980, when she abdicated in favour of her daughter, Queen Beatrix. Hers was a reign marked by dramatic upheavals, national and personal.
Princess is a regal rank and the feminine equivalent of prince (from Latin princeps, meaning principal citizen).here have been fewer instances of reigning princesses than reigning princes as most principalities excluded women from inheriting the throne. Examples of princesses regnant have included Constance of Antioch, princess regnant of Antioch in the 12th century.