- The process of hemostasis is essential for stopping bleeding and involves a complex interplay of blood components.
- Among the blood elements, thrombocytes (platelets) play a primary role in this process.
- When a blood vessel is injured, platelets rapidly adhere to the damaged site, aggregate together, and form a temporary platelet plug.
- This action is crucial in minimizing blood loss. Additionally, platelets release chemical signals that activate the coagulation cascade, ultimately leading to the formation of a stable fibrin clot.

In contrast, erythrocytes (red blood cells) mainly transport oxygen, leukocytes (white blood cells) are involved in immune defense, and plasma proteins such as clotting factors support the coagulation process but are not the primary facilitators of hemostasis.

Key points:
- Thrombocytes (platelets) adhere to vessel injury sites and aggregate to form a plug.
- Platelets release substances that initiate and propagate the coagulation cascade.
- Other elements, like erythrocytes and leukocytes, do not directly facilitate hemostasis.

Reference: Robbins Basic Pathology, 10th Edition, Chapter 12: Hemostasis and Thrombosis, Page 459