By 1828 Randolph was back in Georgia's good graces, and the state legislature decided to name another new county for him. Monticello, Jasper's county seat, pays tribute to Thomas Jefferson, using the name of his home.
An octopus has three hearts, nine brains, and blue blood. Two hearts pump blood to the gills, while a third circulates it to the rest of the body. The nervous system includes a central brain and a large ganglion at the base of each arm which controls movement.
When your heart beats, the electrical impulses that cause it to contract follow a precise pathway through your heart. Interruption in these impulses can cause an irregular heartbeat (arrhythmia). Your heart is divided into four chambers. The chambers on each half of your heart form two adjoining pumps, with an upper chamber (atrium) and a lower chamber (ventricle). During a heartbeat, the smaller, less muscular atria contract and fill the relaxed ventricles with blood.