If we prick the vessel and take sample of blood and pour it in a flask. Which pathway will be activated in the flask?

A. Intrinsic
B. Intrinsic

Please reply soon. THANK YOU VERY MUCH.

Hi there,

I say Intrinsic, since there is no other external factor for coagulation except intrinsic factors like hageman factor and etc (contact factor pathway>>>PTT). For the case of extrinsic, you may add a tissue factor externally, like any other thing extracted from body which acts as tissue factor.

Thank you for bringing that up. Wish you luck with your studies.