The joint present between radius and ulna is

Options

A. Gliding joint
B. Saddle joint
C. Pivot joint
D. Angular joint

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Bones**: The radius and ulna are two long bones located in the forelimb (arm) of the body. The radius is positioned on the outer side (thumb side) and the ulna is located on the inner side (pinky side).

2. **Identifying the Joint Type**: The joint that connects the radius and ulna is important for the movement of the forelimb. This joint allows for rotation and is classified as a type of synovial joint.

3. **Determining the Correct Joint**: Among the options provided (gliding joint, saddle joint, pivot joint, and angular joint), we need to identify which type of joint is specifically found between the radius and ulna.

4. **Evaluating the Options**:
- **Gliding Joint**: This type of joint is found between the carpals (wrist bones) and allows for sliding movements. Therefore, this option is incorrect.
- **Saddle Joint**: This joint is found in the thumb and allows for a greater range of motion. Thus, this option is also incorrect.
- **Pivot Joint**: This joint allows for rotational movement and is indeed the type of joint present between the radius and ulna. This option is correct.
- **Angular Joint**: This term is not commonly used in the classification of joints and does not specifically refer to the joint between radius and ulna. Hence, this option is incorrect.

5. **Conclusion**: After evaluating all the options, the correct answer to the question "The joint present between radius and ulna is" is the **pivot joint**.

**Final Answer**: The joint present between radius and ulna is the **pivot joint**.

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