Which of the following is a flat bone?

Options

A. Tibia
B. Tarsal
C. Malleus
D. Sternum

Answer

To determine which of the following is a flat bone, we need to analyze each option provided in the question. Here’s a step-by-step breakdown of the analysis:

### Step 1: Understand the Definition of Flat Bones
Flat bones are characterized by their thin, flattened shape. They provide protection to internal organs and serve as a surface for muscle attachment. Common examples include the sternum, ribs, and certain bones of the skull.

### Step 2: Analyze Each Option
1. **Tibia**: The tibia is known as the shin bone and is classified as a long bone. It is not flat in structure.

2. **Tarsal**: Tarsal bones are located in the foot and are also not flat bones; they are categorized as short bones.

3. **Malleus**: The malleus is one of the three bones in the middle ear (along with incus and stapes) and is shaped like a hammer. It is not a flat bone.

4. **Sternum**: The sternum, also known as the breastbone, is a flat bone located in the chest. It is flattened and serves as an attachment point for the ribs.

### Step 3: Identify the Correct Answer
Based on the analysis, the only flat bone among the options provided is the **sternum**.

### Final Answer
The flat bone among the options is the **sternum**.

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