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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.
How does the substrate concentration affect the speed of enzymatic reactions? Initially as substrate concentration increases, the speed of the reaction enhances; this happens b
What are plasmids? The Plasmids are circular DNA molecules present in the genetic material of some bacteria. They may perhaps contain genes responsible for bacterial resistance
what is giardia lamblia and deasis
Dextrin Polymers of D-glucose, formed due to partial hydrolysis of starch by enzymes.
Define Essential Parts of Photocolorimeter - Monochromators? This is a means of selecting a sufficiently narrow waveband. Early colorimeters used glass filters that transmitted
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Make a detailed study on Phylum Protozoa taking an example with clear labeled diagrams.
Domestication - Wildlife It means that man has taken under his direct care the living beings which are useful to him. Through extensive breeding programmes, he has modified th
What is Computerised tomography Computerised tomography (CT, but also known as computerised axial tomography, or CAT) provides structural images. To generate brain scans, low l
Q. Define Alcoholic Cardiomyopathy? In a case of dilated cardiomyopathy alcohol cardiomyopathy is suspected if there is history of alcohol intake of 100g/day for more than 10
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