Blood coagulation factor - circulation, Biology

Assignment Help:

Blood coagulation factor - Circulation

The catalytic sequence of events behaves like an enzyme cascade with each product of a reaction being responsible for the activation of the next reaction. At least 13 different plasma factors have been recognised. A deficiency of even one factor can delay or prevent clotting. Why has such a complex mechanism evolved? Maybe it is essential to have a number of initial clotting responses to a variety of internal and external stimuli that can cause haemorrhage. At the same time, any ambiguous stimuli would not be able to cause intravascular clotting when no injury occurs. Coagulation of blood is inhibited by heparin, a mucopolysaccharide that can be isolated from mammalian liver. A haemostatic mechanism is necessary for most animals. In open circulation the contraction of blood vessel to prevent blood loss does not help, but then open systems have low blood pressure and thus decrease the ' chances of large blood losses.

                                                 Table: Blood coagulation factor

1068_Blood coagulation factor - Circulation.png

Clotting mechanisms are also seen in invertebrates. The simplest mechanism is the agglutination of blood corpuscles without the involvement of plasma proteins. A cellular meshwork forms which helps to close the wound. Contraction of muscles also helps in this process.


Related Discussions:- Blood coagulation factor - circulation

Explain about treatment and management of dyslipidemia, Q. Explain about Tr...

Q. Explain about Treatment and Management of Dyslipidemia? Maintenance of blood lipids within the normal range is the most essential objective to prevent the onset/progression

Kingdom protista, what is the taxonomy of phylum sporoza?

what is the taxonomy of phylum sporoza?

What are catalysts, Catalysts are substances that decrease the activation e...

Catalysts are substances that decrease the activation energy of a chemical reaction, facilitating it or making it energetically viable. The catalyst enhances the speed of the chemi

Features of gateway vector, Could any of the following features be useful i...

Could any of the following features be useful in a gateway vector; (i) Origin of replication (ii) multiple cloning site (iii) blue/white selection (iv) M13 forward and rev

Trinomial system, who proposed trinomial system of classification? in ALLEN...

who proposed trinomial system of classification? in ALLEN modules ans is Huxley & Stricklandt but in AAKASH its given Lamarck so what is correct?

Define the effect of zinc deficiency, Define the effect of Zinc Deficiency?...

Define the effect of Zinc Deficiency? Zinc deficiency was identified for the first time in 1940 when malnourished Chinese patients were found to have low concentrations of zinc

Define about ecological models, Why do ecological models commonly have limi...

Why do ecological models commonly have limited applications? The applications of ecological models are limited due to the models are normally very simple and do not accurately

Infusion pump, Infusion Pump As you'have learnt earlier, the amount o...

Infusion Pump As you'have learnt earlier, the amount of fluid to be administered to neonate is based on the neonate's weight and physiological status. It is recommended that

Explain tertiary butylhydroquinone, Tertiary Butylhydroquinone (TBHQ) T...

Tertiary Butylhydroquinone (TBHQ) TBHQ is moderately soluble in oil and slightly soluble in water. In many cases, TBHQ is more effective than any other antioxidant in providing

Unconventional oilseed cakes/meal, Unconventional oilseed cakes/meal ...

Unconventional oilseed cakes/meal Deoiled sal (Shorea robusta) seed meal: It is a byproduct obtained after the extraction of oil from sal seeds. It is found to be high in NF

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