The joint found between the sternum and the ribs in humans are:

Options

A. (a) Saddle joint
B. (b) Fibrous joint
C. (c) Cartilaginous joint
D. (d) Gliding joint

Answer

To solve the question regarding the type of joint found between the sternum and the ribs in humans, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about the type of joint that connects the sternum (breastbone) to the ribs in humans.

2. **Analyze the Options**:
- **Option A: Saddle Joint**: This type of joint allows for a wide range of motion and is found in areas like the thumb. It is not the type of joint between the sternum and ribs.
- **Option B: Fibrous Joint**: These joints are made of fibrous tissue and are typically immovable. They do not contain synovial fluid. This does not apply to the sternum-rib connection.
- **Option C: Cartilaginous Joint**: This joint type is characterized by cartilage connecting the bones. The ribs are connected to the sternum via costal cartilage, making this a strong candidate.
- **Option D: Gliding Joint**: This is a type of synovial joint that allows for limited movement and is found in areas like the wrist and ankle. It does not pertain to the connection between the sternum and ribs.

3. **Identify the Correct Answer**: Based on the analysis, the joint between the sternum and the ribs is a **cartilaginous joint**, as it is made up of cartilage (costal cartilage).

4. **Conclusion**: Therefore, the correct answer is **Option C: Cartilaginous Joint**.

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

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