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A premature heart beat or extrasystole [1] is a heart rhythm disorder corresponding to a premature contraction of one of the chambers of the heart. Premature heart beats come in two different types: premature atrial contractions and premature ventricular contractions .
Bedtime (also called putting to bed or tucking in) is a ritual part of parenting to help children feel more secure [1] and become accustomed to a more rigid schedule of sleep than they might prefer. The ritual of bedtime is aimed at facilitating the transition from wakefulness to sleep. [ 2 ]
One advantage of the Doppler fetal monitor over a (purely acoustic) fetal stethoscope is the electronic audio output, which allows people other than the user to hear the heartbeat. One disadvantage is the greater complexity and cost and the lower reliability of an electronic device. [citation needed]
The most obvious benefit of going to bed early is that you likely will get more sleep. When you have an early work day, getting to bed by 9 or 10 p.m. can ensure you reach the ideal eight hours of ...
The heartbeat is initiated in the pacemaker regions and spreads to the rest of the heart through a conduction pathway. Pacemaker cells develop in the primitive atrium and the sinus venosus to form the sinoatrial node and the atrioventricular node respectively. Conductive cells develop the bundle of His and carry the depolarization into the ...
Rapunzel has time for a lot of hobbies in this song from this 2010 Disney movie. ... Kelly Clarkson is a go-to for kid-friendly songs, but we particularly gravitate toward to lesson on positivity ...
The section shows: 1) the opened ventricles contracting once per heartbeat—that is, once per each cardiac cycle; 2) the (partly obscured) mitral valve of the left heart; 3) the tricuspid and pulmonary valves of the right heart—note these paired valves open and close oppositely. + (The aortic valve of the left heart is located below the ...
The term "bedtime story" was coined by Louise Chandler Moulton in her 1873 book, Bed-time Stories.The "ritual of an adult reading out loud to a child at bedtime formed mainly in the second half of the nineteenth century and achieved prominence in the early twentieth century in tandem with the rising belief that soothing rituals were necessary for children at the end of the day.