Related Experiment Video
Updated: Aug 14, 2026

Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States
Published on: April 1, 2015
Both sides of the hypercoagulable state
1Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, USA.
Thrombosis can occur on the venous or the arterial side of the circulation. Each has different causes, requires a different diagnostic workup, and responds to different therapies. Venous thrombosis may be situational, but may also reflect inherited or acquired anticoagulation defects. Arterial thrombosis usually results from abnormalities in the blood vessel wall--most often atherosclerosis.
Thrombosis can occur on the venous or the arterial side of the circulation. Each has different causes, requires a different diagnostic workup, and responds to different therapies. Venous thrombosis may be situational, but may also reflect inherited or acquired anticoagulation defects. Arterial thrombosis usually results from abnormalities in the blood vessel wall--most often atherosclerosis.
More Related Videos
Related Concept Videos
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.
Venous Thrombosis I: Introduction

