Related Experiment Video
Updated: Aug 7, 2026

A Novel In vitro Model for Studying the Interactions Between Human Whole Blood and Endothelium
Published on: November 21, 2014
Evolution of modern concepts of hemostasis. A backward glance at the discoveries that made modern practice possible
Most of our current knowledge about the roles of blood vessels, platelets, and plasma factors in hemostasis has been gained in the last three decades. However, prior to this period a relatively limited but critical framework of ideas about hemostasis had slowly but steadily evolved, beginning in 1666 when Malpighi discovered fibrin in blood clots. By the turn of the 20th century aggregation of platelets at the site of blood vessel injury was recognized and four enduring coagulation factors emerged: fibrinogen, prothrombin, tissue extracts (thromboplastin), and calcium. Them progress exploded after World War II, leading us into a search for the molecular basis of hemostasis where we are today. Through it all, observations made at the bedside by astute clinicians have been a driving force in the advancement of basic knowledge.
Most of our current knowledge about the roles of blood vessels, platelets, and plasma factors in hemostasis has been gained in the last three decades. However, prior to this period a relatively limited but critical framework of ideas about hemostasis had slowly but steadily evolved, beginning in 1666 when Malpighi discovered fibrin in blood clots. By the turn of the 20th century aggregation of platelets at the site of blood vessel injury was recognized and four enduring coagulation factors emerged: fibrinogen, prothrombin, tissue extracts (thromboplastin), and calcium. Them progress exploded after World War II, leading us into a search for the molecular basis of hemostasis where we are today. Through it all, observations made at the bedside by astute clinicians have been a driving force in the advancement of basic knowledge.
More Related Videos
10:25Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro
Published on: March 19, 2016
09:38A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time
Published on: February 14, 2017
Related Concept Videos
Coagulation
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Introduction to Hemostasis
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized, and...
Coagulation
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
Extrinsic and Intrinsic Pathways of Hemostasis
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which forms a...
Disorders of Hemostasis
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.