301-797-2500. 1718 Underpass Way, Hagerstown, MD 21740 â¢ 301-797-2500 â¢ Hotel Fax: 301-797-6209. The Ramada Plaza-Hagerstown, MD is Located just off I-81 at Exit 5-A, .5 miles North of I-70 on the Western Side of Hagerstown.This Hagerstown Hotel is convenient to Historic Downtown Hagerstown, Hagerstown Premium Outlets, the Valley Mall, and the Hagerstown Regional Airport.Nearby Attractions include Antietam National Battlefield, Harpers Ferry, Fort Frederick State Historical Site, and the Crystal Grottoes Cavern.his Hagerstown Hotel is convenient to Historic Downtown Hagerstown, Hagerstown Premium Outlets, the Valley Mall, and the Hagerstown Regional Airport. Nearby Attractions include Antietam National Battlefield, Harpers Ferry, Fort Frederick State Historical Site, and the Crystal Grottoes Cavern.
Chambers and Valves. The heart is divided into four chambers: (see Figure 2). 1  right atrium (RA). 2  right ventricle (RV). 3  left atrium (LA). 4  left ventricle (LV).
The heart is divided into four chambers, the left atrium and ventricle and the right atrium and ventricle. A wall called the septum divides the two sides of the heart. When blood returns to the heart from the body, it fills the right atrium.The tricuspid valve then opens, allowing blood to be pumped to the ventricle below. Then the ventricle contracts and pumps blood through the pulmonary valve to the lungs. The blood returns from the lungs and then fills the left atrium.he left ventricle then contracts and the aortic valve opens, allowing blood to travel through the aorta to blood vessels throughout your body. A problem with any of the heartâs four valves can compromise the ability of your heart to perform its vital role in blood circulation.