Up to 60% of the Human adult body is water. The lungs are composed of around 83% water, and the brain and the heart are 73%.
According to the research, the correct option is the RR interval must be absolutely constant. It is a characteristic of normal sinus rhythm.
<h3>What is arrhythmia?</h3>
It implies a disorder of the rhythm that makes it not stable or regular and is caused by a failure in the electrical system of the heart rhythm, called the excitation and conduction system.
In this sense, it implies a disorder in the systole of the heart affecting the sinus rhythm that is considered normal in relation to the heart when the RR interval, which is the distance between two successive R waves, is constant, when the waves deviate from sinus rhythm, it is probable that they reveal the existence of some cardiac pathology.
Therefore, we can conclude that according to the research, the correct option is the RR interval must be absolutely constant. It is a characteristic of normal sinus rhythm.
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Answer: 61 inches tall and 6 to 8 years
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the difference between imagination and perception is not understood, a person believes that what is in the mind and reality are one and the same. Thus, if he can imagine a wing falling off the plane, he believes it is possible, and thus is concerned about it.
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The fight-or-flight response (also known as the acute stress response), refers to a physiological reaction that occurs when we are in the presence of something that is mentally or physically terrifying.
The fight-or-flight response is triggered by the release of hormones that prepare your body to either stay and deal with a threat or to run away to safety.
For example, you may yell at your partner for pushing you into agreeing to speak at a conference when you don't feel ready (fight).
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