Coordinated contractions of cardiac muscle cells in the heart propel blood out of the atria and ventricles to the blood vessels of the left/body/systemic and right/lungs/pulmonary circulatory systems.This complex mechanism illustrates systole of the heart.oordinated contractions of cardiac muscle cells in the heart propel blood out of the atria and ventricles to the blood vessels of the left/body/systemic and right/lungs/pulmonary circulatory systems.
The Union army was intent on gaining control of the Mississippi River in order to divide the Confederacy and weaken its economy. Taking control of the Mississippi prevente â¦ d the western Confederate states of Arkansas, Texas, and Louisiana from providing men and material for the Confederate army.
However, this agreement eventually went unheeded. In 1876, the Democrats gained the governorship of Mississippi, and 14 years later, in 1890, the 1868 constitution was replaced by a new constitution by a convention consisting overwhelmingly of white Democrats, 22 years after it was adopted.owever, this agreement eventually went unheeded. In 1876, the Democrats gained the governorship of Mississippi, and 14 years later, in 1890, the 1868 constitution was replaced by a new constitution by a convention consisting overwhelmingly of white Democrats, 22 years after it was adopted.