A reduction in the number of which formed element of blood can lead to clotting disorders

Options

A. `Ca^(2+)`
B. Vit K
C. Platelets
D. haemophilia

Answer

To answer the question regarding which formed element of blood, when reduced in number, can lead to clotting disorders, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Blood Components**: Blood consists of several formed elements, including red blood cells (RBCs), white blood cells (WBCs), and platelets. Each of these elements has specific functions.

2. **Identifying the Role of Platelets**: Platelets, also known as thrombocytes, play a crucial role in hemostasis, which is the process of stopping bleeding. They do this by clumping together at the site of a blood vessel injury and forming a clot.

3. **Recognizing Clotting Disorders**: A clotting disorder occurs when the body has difficulty forming blood clots, leading to excessive bleeding. This can happen if there is a reduction in the number of platelets.

4. **Conclusion**: Given that platelets are essential for the clotting process, a reduction in their number can directly lead to clotting disorders. Therefore, the formed element of blood whose reduction can lead to clotting disorders is **platelets**.

### Final Answer:
A reduction in the number of **platelets** can lead to clotting disorders.

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