Which cells are necessary for vessel repair and clotting during hemostasis?

• A. Erythrocytes
• B. Platelets
• C. Lymphocytes
• D. Neutrophils

Answer: (B)

Verified step by step guidance

1. Understand the process of hemostasis, which is the body's response to blood vessel injury and involves three main steps: vascular spasm, platelet plug formation, and coagulation.
2. Identify the role of different blood cells in hemostasis. Erythrocytes (red blood cells) primarily transport oxygen and do not play a direct role in clotting.
3. Recognize that platelets, also known as thrombocytes, are small cell fragments that are crucial for the formation of a platelet plug during vessel repair. They adhere to the site of injury and release chemicals that activate further clotting processes.
4. Consider the role of lymphocytes, which are a type of white blood cell involved in the immune response, not directly in hemostasis or clotting.
5. Acknowledge that neutrophils, another type of white blood cell, are primarily involved in the immune response and inflammation, rather than in the direct process of vessel repair and clotting.