HUD - Heads up display. Some of your vehicleâs key instrumentation is flashed up onto the bottom of the windshield. This allows drivers to check speed, etc. without having to take their eyes off of the road. Infrared - A term used to describe Solar Coated glass. Laminated - A sandwich of two pieces of glass with a PVB layer between them.
This structure controls the heart rate and is called the heart's natural pacemaker. The sinus node signals the heart to speed up during exercise or in situations that are stressful, frightening or exciting. For example, a 10- to 15-minute brisk walk typically elevates the heart rate to 110 to 120 beats per minute. Also, the sinus node increases the heart rate when the body is stressed because of illness. In all of these circumstances, the heart rate increase is a normal response. Likewise, the sinus node signals the heart to slow down during rest or relaxation.
Generally, a pulse pressure greater than 40 mm Hg is abnormal. A pulse pressure lower than 40 may mean you have poor heart function, while a higher pulse pressure may mean your heart's valves are leaky (valve regurgitation).The most important cause of elevated pulse pressure is stiffness of the aorta, the largest artery in the body.The stiffness may be due to high blood pressure or fatty deposits on the walls of the arteries (atherosclerosis). The greater your pulse pressure, the stiffer and more damaged the vessels are thought to be. high pulse pressure may be a strong predictor of heart problems and, especially for older adults, if your pulse pressure is greater than 60 it is considered a risk factor for cardiovascular disease.