The chest is usually known as the "thorax". This is the space from below the neck to above the diaphragm and includes the lungs and the heart, and many important vessels which are the origin of numerous vessels that supply the upper limbs and the abdominal organs. So pertaining to the chest is thoracic; pectoral also means pertaining to the chest.
Thorax
Axillary is the medical term meaning pertaining to the liver.
Chiral or manual is the medical term meaning pertaining to the hand.
The medical term for pertaining to between the teeth is interdental.
Fetal is the medical term meaning pertaining to a fetus.
Sacroiliac is the medical term meaning pertaining to the sacrum and ilium.
sternocostalsternocostalSternocostal
Systemic or systematic means pertaining to systems.
Pericardial is the medical term meaning pertaining to the pericardium, the membrane surrounding the heart.
The medical term meaning pertaining to fibers is "fibrous" or "fibrillar."
The medical term for 'pertaining to carbon' would be carbonic.
The medical term for pertaining to the underside is "ventral."
The medical term mean pertaining to the vein is venous.