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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.
Doppler echocardiojgraphy measures blood flow velocities and direction of blood flow in the heart add great vessels. The characteristics of blood flow are evaluated using both a
Q. What is Moderate level of Lactase activity? Intake of milk is restricted depending on the tolerance. Fermented and cooked form of milk should be preferred as it is better to
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HMP shunt in erythrocytes HMP shunt in erythrocytes is of importance due to the generation of NADPH, which maintains the glutathione (G-SH) in the reduced state by glutathi
Various structures are seen in two-dimensional planes; hence mental conceptualization is still required because the heart is three-dimensional. Now, newer technology has evolved
Definition of osmosis A) The best explanation of osmosis is 'The movement of water from a dilute solution to a concentrated solution across a partially permeable membrane'.
Q. Explain about Steatorrhoea? Steatorrhoea is a symptom of the disorders of fat metabolism and malabsorption syndrome and can be defined as n condition of foul-smelling bulky
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Explain cytological approach in taxonomy.
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