Tibia in lower leg. Femur in upper leg. So tibial or femoral.
There are lots, but "spinal" is a pretty good starting place. "Lumbar", "thoracic", and "cervical" are terms that (might) relate to particular portions of the backbone (roughly speaking the lower back, upper back, and neck respectively). Vertebral means pertaining to one of the bones that comprise the spine.
The medical term you're looking for is "sacroiliac." It refers to the junction between the sacrum and ilium bones in the pelvis.
The term carpal means pertaining to the wrist. The metacarpals are the bones in the palm of your hand. They form joints with the wrist bones (carpus) and the fingers (phalanges). See link below:
The medical term for pertaining to sound is "auditory."
Synergistic is the medical term referring to action that is greater than the sum of its parts.
The tibia is the inner and typically the larger of the two bones between the knee and ankle, parallel with the fibula.
Fetal is the medical term meaning pertaining to a fetus.
Axillary is the medical term meaning pertaining to the liver.
The medical term pertaining to the pancreas is "pancreatic" or "pancreatitis", which refers to inflammation of the pancreas.
The medical term mean pertaining to the vein is venous.
The medical term for 'pertaining to carbon' would be carbonic.
Periodontal is the medical term meaning pertaining to around the tooth.