The organs making up the digestive system collectively is known as "The Gastrointestinal Tract" or perhaps less formally as the alimentary tract or canal.
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.
sternocostalsternocostalSternocostal
Sacroiliac is the medical term meaning pertaining to the sacrum and ilium.
Systemic or systematic means pertaining to systems.
Bradypepsia is the medical term meaning slow digestion.
The medical term meaning pertaining to fibers is "fibrous" or "fibrillar."
The medical term for pertaining to the underside is "ventral."
The medical term for 'pertaining to carbon' would be carbonic.
The medical term mean pertaining to the vein is venous.