* a) Heparin inhibits blood coagulation through its interference with vitamin K metabolism in the liver
* b) Addition of vitamin K to freshly drawn blood delays clotting
* c) Thrombin converts fibrinogen to fibrin
* d) Platelets are essential for blood clot
* e) Vitamin K is responsible for the production of factors II, VII, IX and X
Answer a. F b. F c. T d. T e. T
Sebaceous cyst is firmly adheres to the skin.
Sebaceous cyst contains mucopolysaccharides.
If dermoid cyst found in the orbital region is usually located in the medial angle of the eye.
Dermoid cyst is lined by squamous epithelium.
In Dermoid, cyst hair may be found in the cyst.
In Dermoid, cyst rupture of the cyst is associated with foreign body type inflammation.
In most cases dermoid cyst are congenital.
A true aneurysm is covered by all three layers of the vessel.
Dissecting aneurysm results from destruction of the vessel media layer.
Hypertension is associated with formation of true aneurysm.
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