Asked by Amelia Gilmore on May 26, 2024
Verified
The cascade of events in the intrinsic pathway can be set into motion when ________ comes into contact with collagen.
A) factor III
B) factor VII
C) factor X
D) factor XII
E) calcium
Intrinsic Pathway
A cascade of clotting factors leading to the formation of a blood clot, activated from within the vessel, without the need for external tissue damage.
Factor III
Also known as tissue factor, a protein involved in the initiation of blood clotting by activating the extrinsic pathway.
Factor VII
A blood coagulation factor involved in the initiation of the clotting process.
- Understand the principles behind the intrinsic, extrinsic, and common pathways involved in coagulation.
Verified Answer
AA
Amber AllisonMay 31, 2024
Final Answer :
D
Explanation :
The intrinsic pathway of blood coagulation is initiated when factor XII (Hageman factor) comes into contact with exposed collagen fibers at a site of injury. This contact activates factor XII, setting off a cascade of events leading to clot formation.
Learning Objectives
- Understand the principles behind the intrinsic, extrinsic, and common pathways involved in coagulation.