“关节的”的英语？

滑液关节的关节囊都是松弛的.The capsules of the synovial joints are lax.医生为我关节的疼痛开了一种新药.The doctor proscribed a new medicine for the pain in my joint.关节炎会产生疼痛 、 肿胀会限制一两个关节的运动.Arthritis produces pain, swelling and limited movement in o...