Hemostasis

Definition

Hemostasis is the process by which the body stops bleeding and maintains blood in a fluid state within the vascular system. It involves a series of complex interactions between blood vessels, platelets, and coagulation factors to form a stable blood clot at the site of injury.

5 Must Know Facts For Your Next Test

1. Hemostasis consists of three primary phases: vascular spasm, platelet plug formation, and coagulation.
2. Nutritional deficiencies, particularly in vitamins K and C, can impair hemostasis and lead to increased bleeding risk.
3. Iron is essential for hemoglobin production; without adequate iron, hemostatic function can be compromised due to anemia.
4. Omega-3 fatty acids have been shown to affect platelet aggregation and may influence hemostasis.
5. Protein intake is crucial for the synthesis of clotting factors; malnutrition can therefore impact hemostatic efficiency.

Review Questions

• What are the three primary phases of hemostasis?
• How does vitamin K deficiency affect hemostasis?
• Why is protein intake important for proper hemostatic function?

Related terms

Coagulation: The process by which blood changes from a liquid to a gel, forming a blood clot.

Platelet Aggregation:

The clumping together of platelets in the blood as part of the sequence leading to the formation of a thrombus or clot.

Anemia:

A condition characterized by a deficiency of red cells or hemoglobin in the blood, resulting in pallor and fatigue.