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

Lungs, what''s the role of lungs in terms of excretion? Like the trachea wh...

what''s the role of lungs in terms of excretion? Like the trachea what''s its role in excretory system?

Diseases of poultry, DISEASES OF POULTRY - Poultry birds suffer from a ...

DISEASES OF POULTRY - Poultry birds suffer from a variety of diseases - Nutritional            -          Rickets Viral                    -          Ranikhet Bact -

Define carbohydrate requirement to avoid underweight problem, Define Carboh...

Define Carbohydrate requirement to avoid underweight problem? Liberal amounts of easy to digest carbohydrates should be included in the diet. The intake of dietary fibre should

State the term - halsted reitan varies, State the term - Halsted Reitan var...

State the term - Halsted Reitan varies with the particular test Scoring for the Halsted Reitan varies with the particular test, such that individual scores may be expressed in

Following statement true for prokaryotic or eukaryotic, Following statement...

Following statement true for prokaryotic or eukaryotic? They use deoxyribonucleic acid as their major information storage molecule

What is intermittent st depression, What is Intermittent ST Depression ? ...

What is Intermittent ST Depression ? Ans. Several patients progress from variable ST-segment depression, often associated with respiration, to the classic ST-segment chang

Define the starch gel electrophoresis, Define the Starch gel electrophoresi...

Define the Starch gel electrophoresis? Starch gel has the advantage of fine texture and absence of protein adsorption with a molecular sieving effect retarding proteins of larg

The population thus contains secretors, The A and B antigens in humans may ...

The A and B antigens in humans may be found in water-soluble form in secretions, including saliva, of some individuals (Se/Se and Se/se) but not in others (se/se). The population t

What is the full chemical equation of photosynthesis, Q. What is the full c...

Q. What is the full chemical equation of photosynthesis? The full chemical equation of photosynthesis is given below: 6 CO 2 + 12 H 2 O + light --> C 6 H 12 O 6    + 6 H 2

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