What is the joint between sternum and ribs in humans

Options

A. Fibrous joint
B. gliding joint
C. angular joint
D. cartilaginous joint

Answer

To answer the question "What is the joint between sternum and ribs in humans?", we will analyze the types of joints and identify the correct one.

### Step-by-Step Solution:

1. **Identify the Types of Joints**:
- The types of joints include fibrous joints, gliding joints, angular joints, and cartilaginous joints.

2. **Understand Fibrous Joints**:
- Fibrous joints do not allow any movement. They are typically found in the skull (sutures) and are not relevant to the sternum and ribs.

3. **Understand Gliding Joints**:
- Gliding joints allow for some movement between bones. They are found between the sternum and clavicles but do not describe the connection between the sternum and ribs.

4. **Understand Angular Joints**:
- Angular joints allow movement in two directions. An example is the wrist joint, which is also not applicable to the sternum and ribs.

5. **Understand Cartilaginous Joints**:
- Cartilaginous joints are made up of cartilage and allow for slight movement. The connection between the ribs and the sternum is a cartilaginous joint, specifically known as the costal cartilage.

6. **Conclusion**:
- The joint between the sternum and ribs in humans is a cartilaginous joint.

### Final Answer:
The joint between the sternum and ribs in humans is a **cartilaginous joint**.

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