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.
A high pulse rate that goes beyond normal limits is known as tachycardia, which may be a normal response to some stimuli, or part of a medical condition. The heart of a healthy adult beats within the range of 60-100 times per minute at rest.This rate is controlled by electrical signals within the heart. Emotional factors: Temporary causes of high pulse rate include emotional factors like sudden fear, emotional stress or anxiety, excitement, and nervousness. 2  These are normal responses of the body, and tachycardia may subside after the stimulus is gone.