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.
Patriots also included slaves and freemen such as Crispus Attucks, a free man and the first martyr of the American Revolution; James Armistead Lafayette, who served as a double agent for the Continental Army; and Jack Sisson, who, under the command of Colonel William Barton, was leader of the first successful black operation mission in American history, resulting in the capture of British General Richard Prescott