Yes, it is ball and socket joint (a type of synovial joint).
It is one of a pivot joint and it moves freely.It ot found in your shoulder.Everyone has has one or your arm want be moving.
All synovial joints contain a joint cavity. Synovial joints differ from the other joints: Fibrous and cartilaginous joints. Synovial is different because of its structure, and includes several parts...
NO