Effects of flow limiting stenosis on blood flow, Biology

Assignment Help:

1) The presence of epicardial coronary artery stenosis caused by artherosclerotic plaques is by far the most frequent angiographic finding in any cardiac ischaemic syndrome.

2) Experimental studies in dogs showed that the acute reduction of coronary diameter by more than 50 per cent causes a measurable basal transstenotic pressure gradient. Further decreases in diameter cause an exponential increase of transstenotic pressure gradient and reduction of maximal coronary blood flow.

3) The stenosis resistance is linearly related to the length of the stenosis and to the flow turbulence caused by the stenosis irregularities.

4) The greater the basal transstenotic pressure gradient, the greater the reduction of coronary myocardial ischaemia appears during effort.

5) In presence of a decreased poststenotic pressure ischaemia initially occurs in subendocardial layers, because the subendocardium is more vulnerable to ischaemia than the subepicardium.


Related Discussions:- Effects of flow limiting stenosis on blood flow

Tropical seasonal forests - ecosystem, Tropical seasonal forests - Ecosyste...

Tropical seasonal forests - Ecosystem Tropical seasonal forests occur in regions where total annual rainfall is very high but segregated into pronounced wet and dry periods. T

Difference between an ecological niche and a habitat, What is the differenc...

What is the difference between an ecological niche and a habitat? An ecological niche is a set of peculiar activities, resources and methods that a species explores to survive

Control of soil pollution, Following steps must be taken: Domestic an...

Following steps must be taken: Domestic and industrial garbage should be profitably utilized. Compost pits and installation of Gobar-gas plant in rural areas must be encourag

Determine minerals requirements at high altitude, Determine Minerals Requir...

Determine Minerals Requirements at high altitude? Increased urinary excretion of Nat and K + on exposure to hypoxia is reported while some workers have found only increase in

Explain mode of feeding, Normal 0 false false false EN-...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 Mode of feeding

How cultural practices are effective at limiting disease, Give two cultural...

Give two cultural practices (not chemical) you could use to control black spot of rose. Based on your current knowledge of the disease triangle, why do you think these cultural pra

How to obtain the absorbance of a stationary culture, If a spectrophotomete...

If a spectrophotometer can read accurately within the range of 0.1-1.0 optical density units, then how can you obtain the absorbance of a stationary culture (which may have an A550

Microorganisms, discuss the importance of protozoa to humans

discuss the importance of protozoa to humans

Nutritional management for constipation, Q. Nutritional management for cons...

Q. Nutritional management for constipation? Calories, proteins, carbohydrates and fat the requirements would be the same as the RDA for a particular age, sex, occupation of t

Blood be enhanced during vigorous activity, The percentage of oxygen absorb...

The percentage of oxygen absorbed from the air in the lungs is always about the similar, so how can the oxygen supply to the blood be enhanced during vigorous activity? Breathi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd