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 the history of nutrition, Explain the History of Nutrition? Kno...

Explain the History of Nutrition? Knowledge of human nutritional needs and relationship between diet and health was placed on a modern scientific footing only since the 19th ce

Rare species - wildlife, Rare Species - Wildlife These are those speci...

Rare Species - Wildlife These are those species whose numbers are few or they live in such small areas or in such unusual environments (endemics), that they could quickly disa

What are analogies for mitochondria, What are analogies for mitochondria? ...

What are analogies for mitochondria? Well, as you know, the mitochondria are the producers of most of a cell's energy and the nucleolus makes ribosomes. The cell wall is only i

Explain the determination of nicotinic acid, Determination of Nicotinic aci...

Determination of Nicotinic acid The chemical methods of assay are based on colour reactions of pyridine. Nicotinic acid and nicotinamide are converted by cyanogen bromide into

Cost-benefit relationship regarding sewage treatment, Q. What is the cost-b...

Q. What is the cost-benefit relationship regarding sewage treatment as a strategy to fight water pollution? To treat sewage is greatly cheaper for society. The non-treated sewa

How hiv infection is mainly spread, It is mostly spread by sexual contact, ...

It is mostly spread by sexual contact, blood transfers and from HIV infected mother to child.

Membrane proteins and carbohydrate, The cell membrane is a slim semi-permea...

The cell membrane is a slim semi-permeable membrane which surroundings the cytoplasm of a cell. Membrane function is to defend the integrity of the interior of the cell by allowing

Typical signs of hip fracture-shortening, In the case story, Reggie present...

In the case story, Reggie presented with three typical signs of hip fracture-shortening, adduction, and the lateral rotation of the affected limb. What causes these signs? (HINT-th

Describe aerobic respiration to the pyruvic acid molecules, Q. What happens...

Q. What happens during aerobic respiration to the pyruvic acid molecules made by glycolysis? and What is the sequence of reactions that then follows? The pyruvic acid molecules

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