Blood clotting, Biology

Assignment Help:

BLOOD CLOTTING -

  • It is a nature's device to check the excessive loss of blood from an injury.
  • Bleeding time is 1-3 minutes. Clotting time is 2-6 minutes.
  • Process of clotting is initiated by platelets / Thrombocytes.
  • After clotting remaining part is serum. Clotting is a bio-chemical reaction, explained by Hobel.
  • Clotting theory is given by cascode. Vit. K is necessory for clotting.
  • In haemophillia (sex-linked inheritance) VIII factor is absent so injection of AHG (Anti haemophilic globulin) are given.
  • At the point of injury serotonine & thromboplastin (lipoprotein) are released.
  • Serotonine is helpful in vaso constriction. Thromboplastin helps in the formation of prothrombinase.
  • In presence of prothrombinase prothrombin is converted into thrombin.
  • Thrombin reacts with fibrinogen in presence of air & Ca++ to form fibrin. Network of fibrin forms clot.
  • In presence of XII factor (Hagmen factor / glycoprotein) danse net is formed.

Related Discussions:- Blood clotting

Monocotyledonous embryo, Monocotyledonous Embryo The early developmen...

Monocotyledonous Embryo The early development of the proembryo in monocots follows the same pattern as in the dicots. However, at the time of differentiation in the globular

What is the neurotransmitter of the neuromuscular junction, Q. What is the ...

Q. What is the neurotransmitter of the neuromuscular junction? How does the nervous system trigger muscle contraction? The nervous cells that trigger the muscle contraction are

Explain about the herbal of valerius cordus, Explain about the Herbal of Va...

Explain about the Herbal of Valerius Cordus? The Herbal of Valerius Cordus published posthumously in 1561; contained not only medicinal plants found in Germany and Italy, but

Explain metastatic carcinoma, Explain Metastatic carcinoma Metastatic ...

Explain Metastatic carcinoma Metastatic carcinoma:- Cancer that can be  transferred from one part of the body to other unrelated parts.

Why the av node of a mammalian heart is destroyed, The AV node of a mammali...

The AV node of a mammalian heart is destroyed. A. A depolarization in a cell in the left atrium will cause a depolarization of a cell in the left ventricle. B. The contracti

Evolution, Evolution can be explained as follows  1) The change in the ...

Evolution can be explained as follows  1) The change in the life over time by adaptation, over-reproduction, variation and differential survival/reproduction, a procedure refer

Define chlorophyll - natural colourant, Chlorophyll Chlorophyll is the...

Chlorophyll Chlorophyll is the porphyrin most widely used as a natural colourant. Its widespread occurrence in photosynthetic  tissue and its breakdown character have prompted

What is S shaped incision, Q. What is S shaped incision? The S - shaped...

Q. What is S shaped incision? The S - shaped incision is indicated where a papilla needs to be developed and was first described by Palacci. This type of incision is essentiall

Define isolated soybean proteins in infant formulas, Define isolated soybea...

Define isolated soybean proteins in Infant formulas? Infant formulas, where milk solids have been replaced by soy products, are well established commercial products. ISP is the

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