MetabolismParamount in importance is the continuous flow of oxygenated blood. This flow is central to metabolism, the production of energy and other materials necessary for life. Energy production is synonymous with life. No energy...no life. Energy production through oxygenation (with... More that utilizes oxygen is called aerobic metabolism.
Energy production through oxygenation (with oxygen) yielding 32 ATP molecules from the interaction of one glucose and one oxygen molecule. “Paramount in importance, though, is the continuous flow of oxygenated blood. This flow is central to metabolism, the production of energy and other materials necessary for life. Energy production is synonymous with life. No energy…no life. Blood delivers oxygen and glucose to the tissues. One molecule of glucose is oxidized in the cell’s mitochondria to produce 36 adenosine triphosphate molecules (ATP).
O2 + Glucose = H2O + CO2 ===> 36 ATP
Metabolism that utilizes oxygen is called aerobic metabolism. The above equation is the balance of the much abbreviated Kreb’s cycle. Any unsettled memories bubbling up? The point is that oxygen when combined with glucose produces a substantial amount of energy.
Note that ATP is the primary energy molecule for the body. Virtually every activity – thinking, movement, cardiac contraction, protein formation, etc. – requires ATP. Without a continuos production of ATP, each of these processes would cease.
Aerobic metabolism has by-products of water (H2O) and carbon dioxide (CO2). Water we can definitely use. In fact, about 2/5 of body fluids come from aerobic metabolism, from what is burned (or oxidized) rather than what is drank. And carbon dioxide is readily breathed off at about 20 times the rateHeart Rate; calculated by counting the number of QRS complexes in six seconds and multiplying by 10; rate is also determined by measuring the number of large squares between two R waves; i.e. –1 large square = heart rate of 300/minute. More that oxygen diffuses into the bloodstream. Aerobic metabolism is incredibly efficient and effective.
Sufficient cardiac outputWhat is it? Why is it Vital? The amount of blood pumped out of the ventricle in a minute (most often refers to the blood pumped by the left ventricle) What is cardiac output? Simply, cardiac output is the amount... More is necessary to deliver adequate supplies of oxygen and nutrients (glucose) to the tissues. This translates to the conclusion that cardiac output is directly related to energy production. Low cardiac output will reduce energy levels.
For example, if your cardiac output fell to 3500 ml (about 2/3 of normal) your oxygen – and hence your energy supply – would be decreased as well. Your brain with 1/3 less energy may be less sharp, confused or even unconscious. Your muscles with 1/3 less energy would feel weaker. In contrast, high cardiac output satisfies periods of high energy demand.
1. Six Second ECG GuidebookA Practice Guide to Basic and 12 Lead ECG Interpretation, written by Tracy Barill, 2012 Introduction The ability to correctly interpret an electrocardiogram (ECG), be it a simple six second strip or a 12 lead ECG, is a vital skill... More (2012), T Barill, p. 25-26, 189