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).
Component Parts.âAs has already been stated (page 497), the heart is subdivided by septa into right and left halves, and a constriction subdivides each half of the organ into two cavities, the upper cavity being called the atrium, the lower the ventricle.