All of the Following Are Known Mechanisms for Activation of the Coagulation

question 13

Multiple Choice

All of the following are known mechanisms for activation of the coagulation cascade except:

• A) Activation of the extrinsic coagulation pathway by factor XIa
• B) Activation of the extrinsic coagulation pathway by the release of tissue thromboplastin
• C) Activation of the intrinsic coagulation pathway by factor XIIa
• D) Direct activation of factor X or II
• E) None of the above

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Definitions:

Synthesized Vitamin

A vitamin that is created in a laboratory setting rather than obtained from natural food sources, designed to mimic the biological activity of its natural counterpart.

Intestine

A part of the alimentary canal extending from the stomach to the anus, involved in nutrient absorption and waste elimination.

Vitamin K

A group of fat-soluble vitamins essential for the production of blood clotting factors and bone metabolism.

Upper Intake Levels (ULs)

The maximum daily intake of a nutrient that is unlikely to cause adverse health effects for most individuals.