Activation of which one of the following coagulation factors is not essential for hemostasis________________?
Correct answer: B. XII
- A. XI
- B. XII
- C. IX
- D. X
Explanation
Factor XII initiates the contact pathway in laboratory testing but is not essential for normal hemostasis in vivo, because tissue-factor-mediated coagulation can generate clotting. Factors XI, IX and X have more important roles in effective coagulation.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Blood and Immunity
81 free Blood and Immunity MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physiology questions like this
Physiology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Blood and Immunity questions
Hemostasis depends upon all the following, EXCEPT_______________?
The anticoagulant of choice used in the blood bank is_______________?
T- lymphocytes function to______________?
The half-life of plasma Albumin is approximately___________________?
Lymphocytes are located in each of the following tissues or organs EXCEPT one. The one exception is______________?
Which of the following causes lysis of clot______________?