Structures called that are found in some synovial joints cushion the articulating surfaces and help distribute body weight at joints such as the knee.

The structures that are found in some synovial joints that cushion the articulating surfaces and help distribute body weight at joints such as the knee are called Menisci.

Here are the steps to answer this question:

1. Understand the question: The question is asking about a specific structure found in some synovial joints that have a specific function of cushioning articulating surfaces and distributing body weight at certain joints.

2. Recall knowledge about synovial joints: Synovial joints are the most common type of joint in the body. They are highly movable and contain a cavity filled with synovial fluid. This fluid lubricates the joint, reducing friction and wear.

3. Identify the specific structure: The structure being referred to in the question is the meniscus. Menisci are crescent-shaped fibrocartilaginous structures that partly divide a joint cavity. In the knee, there are two menisci.

4. Understand the function of the menisci: The menisci act as shock absorbers, cushioning the articulating surfaces of the bones. They also help distribute body weight across the joint, reducing pressure on any one point.

5. Formulate the answer: The structures that are found in some synovial joints that cushion the articulating surfaces and help distribute body weight at joints such as the knee are called Menisci.