Final answer:
Syndesmosis permits a slight amount of movement in joints, known as amphiarthrosis, allowing stability in the leg and rotation in the forearm.
Step-by-step explanation:
Syndesmosis permits a specific type of movement known as amphiarthrosis, which is characterized by a slight amount of movement between the bones. A prime example of this can be seen in the forearm and leg, where syndesmoses unite parallel bones. In the leg, the syndesmosis between the tibia and fibula allows for little movement, providing stability to the leg and ankle. In contrast, in the forearm, the syndesmosis permits the rotation of the radius bone during forearm movements due to the flexibility of the interosseous membrane. This contrasts with the more rigidly connected syndesmosis in the leg, highlighting the varied functions of syndesmotic joints depending on their location in the body.