Human blood normally has a pH of about 7.4.Certain chemical reactions within your cells can lead to an increase in the amount of H+ ions.When these ions move into the blood,buffers take up some of them,preventing the blood from becoming acidic enough to endanger cell function.
Crispus Attucks, (born 1723?âdied March 5, 1770, Boston, Mass. [U.S.]) American hero, martyr of the Boston Massacre. Attucksâs life prior to the day of his death is still shrouded in mystery. Although nothing is known definitively about his ancestry, his father is thought to be Prince Yonger, a slave who was brought to America, while his mother is thought to be Nancy Attucks, a Natick Indian.
Crispus was leader in victorious military operations against the Franks and the Alamanni in 318, 320 and 323. Thus he secured the continued Roman presence in the areas of Gaul and Germania. Crispus joined his father in visiting Rome during 322, and received the warmest and most enthusiastic welcome by the crowds. The soldiers adored him thanks to his strategic abilities and the victories to which he had led the Roman legions.