Which of the following is an example of a plane joint? A) Elbow B) Hip C) carpal joints D) Knee

1. **Identify the type of joint:** A plane joint (also known as a gliding joint) is a type of synovial joint where the flat or slightly curved articular surfaces allow bones to slide past each other. 2. **Examine the options:** - **Elbow:** This joint is a hinge joint, allowing movement predominantly in one plane (flexion and extension). - **Hip:** The hip joint is a ball-and-socket joint, permitting movement in multiple directions. - **Carpal joints:** These joints involve the small bones of the wrist and are primarily characterized as plane (gliding) joints, allowing limited sliding movements. - **Knee:** This is mainly a hinge joint (with some slight rotation), not a plane joint. 3. **Determine the correct answer:** The carpal joints are the example of a plane joint. Thus, the correct answer is: \( \text{C) carpal joints} \).