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Daphnia_Heartbeat.ogv (Ogg Theora video file, length 45 s, 640 × 480 pixels, 593 kbps, file size: 3.22 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
These are the first heart sound (S 1) and second heart sound (S 2), produced by the closing of the atrioventricular valves and semilunar valves, respectively. In addition to these normal sounds, a variety of other sounds may be present including heart murmurs , adventitious sounds , and gallop rhythms S 3 and S 4 .
Moreover, the vigorous heart palpitations induced by the accelerans nerve in the hearts of cats seem to disappear quickly after a low-frequency stimulation is applied to the nerves. [2] [5] [10] This quick shift in the heart rate resulted in the idea that decreases of stroke volume in humans requires direct vagal control of the heart ventricles.
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Steven Berkoff describing a heart attack in the film. The stereotypical heart attack, represented in films (such as Ocean's Thirteen, where Elliott Gould was shown falling over and clutching his chest, and Something's Gotta Give which showed Jack Nicholson's character being rescued from his attack by Diane Keaton) and in television is not always true to life, yet a YouGov poll discovered that ...
Heartbeat, heart beat, heartbeats, and heart beats may refer to: ... a video game developer; Heartbeat 1521, a defunct radio station in Northern Ireland, ...
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A heart rate monitor (HRM) is a personal monitoring device that allows one to measure/display heart rate in real time or record the heart rate for later study. It is largely used to gather heart rate data while performing various types of physical exercise. Measuring electrical heart information is referred to as electrocardiography (ECG or EKG).