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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.
Pathophysiology The blood clotting mechanism occurs in three phases each dependent on preceding I phase. Due to the inherited deficiency of factor VIII and or factor IX, the
Define Observation or Inference for Mucic Acid Test? 1. White crystals of mucic acid will be seen. 2. The sugar solution contains galactose. 3. Lactose gives this test, s
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Pangenesis Theory (i) Charles Darwin propounded pangenesis theory. (ii) According to this theory every cell, of animal body produces many minute particles kn
tell me how to write a report in molecular biology?
What is the other name given to sex chromosomes? Sex chromosomes are also known as allosomes (the other chromosomes that are not sex chromosomes are known as autosomes).
Explain in brief about the ciliary muscle During accommodation the ciliary muscle contracts and in turn the size of the ciliary ring is reduced. This results in the suspensory
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Q. What is facial prosthesis? Dental implants have prosthesis also been used for facial prosthesis which includes nasal, orbital or auricular prosthesis. Implant and bar retain
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