Pathology – MCQ 101 – Anticoagulant function of blood

The blood in the vessels normally does not clot because:
A. Vitamin K antagonists are present in plasma
B. Thrombin has a positive feedback on plasminogen
C. Sodium citrate in plasma chelates calcium ions
D. Vascular endothelium is smooth and coated with glycocalyx

Correct answer : D. Vascular endothelium is smooth and coated with glycocalyx

Glycocalyx is a general term referring to extracellular polymeric material (glycoprotein) produced by some bacteria, epithelia and other cells. The highly charged glycocalyx of endothelial cells helps prevent platelet adhesion. It also functions to prevent leukocyte adhesion in normal tissues (prevent unwanted inflammation).

Add a Comment

Your email address will not be published. Comments will be displayed only after moderation.

Read previous post:
pathology mcq
Pathology – MCQ 100 – Fungating lesion in the oral cavity of an elderly tobacco chewer

A 70 year old male who has been chewing tobacco for the past 50 years presents with a 6 months...

Close