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.
The Chickasaw Indians were Mississippiâs second largest Indian group after the Choctaws. Before the United States government forced their removal in the 1830s, the Chickasaw resided in north Mississippi with their villages centered between the headwaters of the Yazoo and Tombigbee rivers around present-day Tupelo. They also claimed lands covering present-day western Tennessee.