Copy link. Info. Shopping. Tap to unmute. If playback doesn't begin shortly, try restarting your device. Your browser can't play this video. 14 jun. Valsalva maneuver. Hold your nose, close your mouth, and try to blow the air out. · Cough. · Gag. · Hold your knees against your chest: Do it for a. 29 jul. So, how do vagals work? Well, in short, the vagus nerve supplies parasympathetic fibers to the myocardium, and the effect of vagal maneuvers.
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