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The adaptive mechanisms may be short term ones which come into play within minutes or hours of the onset of myocardial dysfunction. These are:
Frank-Starling Mechanism
In the Frank-Starling mechanism increased preload helps in sustaining cardiac performance. Starling's law essentially means that stroke volume is related to the end-diastolic volume. Frank proposed that the greater initial left ventricular volume leads to more rapid rate of rise of pressure, greater peak pressure and faster rate of relaxation. So the Frank-Starling law accounts for increased inotropic state and increased diastolic filling.
Neuro Hormones
Activation of neurohumoral systems resulting in release of noradrenaline leading to augmentation of myocardial contractility.
Renin-Angiotensin-Aldosterone System
Activation of renin-angiotensin-aldosterone system which helps in maintaining arterial pressure and perfusion of vital organs.
What are Antifoaming Agents In food industries, undesirable foams may be formed such as in concentration of fruit juices, coffee extracts, vegetable oils and syrups or in ferm
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STATE THE ECONOMIC AND ECOLOGICAL IMPORTANCE OF ECHINODERMS
What is the estimated percentage (in mass) of water in the human body? Is this percentage expected to be larger in the adult or in the old individual? About 65% of the human in
Define Initiation phase - mechanism of protein synthesis ? The assembly of a ribosome on an mRNA molecule at the correct start point, the initiation codon. Three initiation fac
DISEASE CONCERNED WITH KIDNEY - 1. Paget's disease - Abnormalities of kidney. 2. Uramia - Increases in quantity of urea. 3. Nephritis - Inflamation in glom
Which of the following statements concerning the inheritance of a dominant trait is true? Every affected person must have at least one affected parent. The trait is observed to ski
photosynthesis moderates global warming, briefly explain this statement
Dose-response extrapolation In order to be compared to human exposure levels, the animal data need to be extrapolated to doses much lower than those studied. This extrapolation
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