What is the name of joint between ribs and sternum ?

Options

A. cartilaginous joint
B. Angular joint
C. Gliding joint
D. Fibrous joint

Explanation

To answer the question, "What is the name of the joint between ribs and sternum?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Bones Involved**: The question asks about the joint between the ribs and the sternum. The ribs are the curved bones that form the rib cage, and the sternum is the flat bone located in the center of the chest.

2. **Understand the Type of Joint**: The joint between the ribs and the sternum is a type of joint that allows for some movement. This is important because the rib cage needs to expand and contract during breathing.

3. **Identify the Joint Type**: The joint between the ribs and the sternum is classified as a cartilaginous joint. Cartilaginous joints are characterized by the presence of cartilage between the bones, which allows for limited movement.

4. **Name the Specific Joint**: The specific name of the joint between the ribs and the sternum is the "costosternal joint." The term "costal" refers to the ribs, and "sternal" refers to the sternum.

5. **Conclusion**: Therefore, the name of the joint between the ribs and sternum is the **costosternal joint**.