Which of the these joint is correctly matched with the type of joint?

Options

A. Atlas to occipital condyle - Pivot
B. Tarsals to metatarsals - saddle
C. Tibia to talus - Hinge
D. Femur to coxal bone - Ellipsoid

Answer

To determine which joint is correctly matched with its type, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Option 1: Atlas to Occipital Condyle - Pivot Joint**
- The atlas is the first cervical vertebra, and the occipital condyles are parts of the skull that articulate with the atlas. This joint allows for nodding movements (yes motion) and is classified as a **condyloid joint**, not a pivot joint. Therefore, this option is incorrect.

2. **Option 2: Tarsals to Metatarsals - Saddle Joint**
- The tarsals are the bones in the ankle, and the metatarsals are the long bones in the foot. The joint between the tarsals and metatarsals is classified as a **synovial joint**, specifically a gliding joint, not a saddle joint. Thus, this option is also incorrect.

3. **Option 3: Tibia to Talus - Hinge Joint**
- The tibia is the larger bone in the lower leg, and the talus is a bone in the ankle. The joint formed between the tibia and talus is indeed a **hinge joint**, which allows for flexion and extension movements. This option is correct.

4. **Option 4: Femur to Coxal Bone - Ball and Socket Joint**
- The femur is the thigh bone, and the coxal bone (hip bone) articulates with the femur at the hip joint. This joint is classified as a **ball and socket joint**, which allows for a wide range of motion. However, this option is not what we are looking for since we are identifying the correct match among the options.

### Conclusion:
The correct answer is **Option 3: Tibia to Talus - Hinge Joint**.

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