Final answer:
The 2nd sternocondral joint is not a synovial plane joint, unlike the other options provided. The correct answer is D. 2nd sternocondral joint. The correct option is D.
Step-by-step explanation:
Before we identify which of the options is not a synovial plane joint, let's understand what a synovial joint is. Synovial joints are places where bones articulate with each other inside a joint cavity.
They allow for a wide range of motion and are surrounded by a synovial membrane that produces synovial fluid to lubricate the joint and reduce friction.
A synovial plane joint is a type of synovial joint that allows for sliding or gliding movements between flat or slightly curved bone surfaces. They tend to have limited mobility and typically move in one plane. Examples of synovial plane joints include the intercarpal joints and facet joints of the vertebral column.
Looking at the given options, the 2nd sternocondral joint is not a synovial plane joint. The 2nd sternocondral joint is a synovial joint between the second costal cartilage and the sternum, allowing for slight movement during respiration.
It is not a plane joint but rather a synovial joint with a different structure and function. The correct answer is D. 2nd sternocondral joint. The correct option is D.