Questions: Which of the following is an example of a cartilaginous joint? - pubic symphysis - knee joint - hip joint - skull sutures

The answer is the first one: pubic symphysis.

Explanation for each option:

1. Pubic symphysis: This is a cartilaginous joint, specifically a symphysis, where the bones are joined by fibrocartilage. It is found between the left and right pubic bones in the pelvis.

2. Knee joint: This is a synovial joint, not a cartilaginous joint. It is characterized by the presence of a synovial cavity and is highly movable.

3. Hip joint: This is also a synovial joint, specifically a ball-and-socket joint, which allows for a wide range of movement.

4. Skull sutures: These are fibrous joints, not cartilaginous joints. They are immovable and found between the bones of the skull.

Summary: The pubic symphysis is an example of a cartilaginous joint.