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 predominantly diurnal, Evidence  Similarities between 79° a...

Evidence  Similarities between 79° and 70°, eg Feeding activity continuous / continues for 24 hours during polar day (summer months) feeding activity more intense i

Glucose rehydration therapy, The movement  of Na + and glucose  from the l...

The movement  of Na + and glucose  from the lumen  of the intestine  across  the epithelial  cell to the blood  sets up a dissimilarity  in osmotic  pressure  across  the cell. As

Primitive arthropods, Primitive Arthropods The primitive arthropods, O...

Primitive Arthropods The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of t

Groups of living beings that form the protist kingdom, Q. Which are the gro...

Q. Which are the groups of living beings that form the protist kingdom? The protist kingdom includes algae and protozoans. (Two groups of fungi with similar characteristics to

Define about the column chromatography, Define about the Column chromatogra...

Define about the Column chromatography? In column chromatography, a tube is filled with the material constituting the stationary phase, plus a solvent (mobile phase). The gener

Causes of non-ketotic hyperosmolar diabetic coma, Q. Causes of Non-Ketotic ...

Q. Causes of Non-Ketotic Hyperosmolar Diabetic Coma? The causes of NKHDC are given below: 1) Infections 2) Trauma 3) Burns 4) Myocardial Infarctions (heart attack)

Epistasis, EPISTASIS Epistasis is the phenomenon of masking or suppress...

EPISTASIS Epistasis is the phenomenon of masking or suppressing the expression of a gene by another non allelic gene. The gene which suppresses the expression of a non allelic

How can the enzymes be classified, How can the enzymes be classified? Expla...

How can the enzymes be classified? Explain giving examples. Based on structure, enzymes can be classified into monomeric enzymes and oligomeric compounds. Monomeric enzym

The skin., what is the function of cornified layer of the skin

what is the function of cornified layer of the skin

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