| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Breast, pectoral muscles and axillary tissue, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Breast and axillary tissue, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Vertebral column and cranium, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Bone and joint, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Bone and cartilage, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Sphenoid and ethmoid bones, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Zygomatic and palatine bones, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Rib and transverse process of vertebra, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Bones of vertebral column, pelvis and lower extremities (combined site) | Is a | False | Combined site | Inferred relationship | Some |  | 
| Radius and ulna (combined site) (body structure) | Is a | True | Combined site | Inferred relationship | Some |  | 
| Tibia and fibula, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Tibia and fibula, proximal, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Tibia and fibula, midshaft, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Tibia and fibula, distal, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Joints of head and vertebral column, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Nose and nasopharynx (combined site) (body structure) | Is a | False | Combined site | Inferred relationship | Some |  | 
| Epiglottis and larynx, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Terminal bronchiole and lung, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Lung and pleura, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Lung and tracheobronchial lymph nodes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Aortic and mitral valves, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Pericardial fluid and cavity, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Coronary artery and myocardium, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Coronary artery and coronary artery, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Coronary artery and internal mammary artery, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Coronary artery and cardiac vein (combined site) (body structure) | Is a | True | Combined site | Inferred relationship | Some |  | 
| Pulmonary artery and pulmonary artery, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Pulmonary artery and pulmonary vein, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Gastrointestinal fluids and spaces, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Lip and jaw, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Lower lip and lower jaw, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Upper lip and upper jaw, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Upper lip, upper jaw and palate, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Jejunum and ileum, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Anus, rectum and sigmoid colon, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Digestive organs and peritoneum, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Liver and intrahepatic bile ducts, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Gallbladder and bile ducts, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Gallbladder and extrahepatic bile ducts, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Gallbladder and common bile duct, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Pancreatic duct and bile duct systems, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Urinary tract fluids and spaces, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Kidney and renal pelvis, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Ureter and calyx, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Female genital fluids and spaces, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Vulva and vagina, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Vulva, vagina and perineum, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Vagina and uterus, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Vagina and cervix, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Vagina and perineum, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Uterus and cervix, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Uterus, fallopian tubes and ovaries, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Uterus, right fallopian tube and ovary, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Uterus, left fallopian tube and ovary, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Uterus and fallopian tubes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Uterus and right fallopian tube, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Uterus and left fallopian tube, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Fallopian tube and ovary, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Right fallopian tube and right ovary, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Left fallopian tube and left ovary, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Both fallopian tubes and both ovaries, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Fallopian tubes, ovaries and broad ligaments, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Right fallopian tube, right ovary and broad ligament, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Left fallopian tube, left ovary and broad ligament, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Male genital fluids and spaces, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Glans penis and foreskin, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Prostate and seminal vesicle, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Lobes and capsule of prostate, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Testis and epididymis, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Testis and scrotum, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Epididymis and vas deferens, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Vas deferens and vas deferens, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Brain and spinal cord (combined site) (body structure) | Is a | False | Combined site | Inferred relationship | Some |  | 
| Brain, spinal cord and meninges, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Brain and meninges, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Brain and cranium, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Cerebral ventricle and subarachnoid cistern, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Cerebral ventricle and jugular vein, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Cerebral ventricle and peritoneum, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Frontal and parietal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Right frontal and parietal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Left frontal and parietal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Temporal and frontal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Right temporal and frontal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Left temporal and frontal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Parietal and occipital lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Right parietal and occipital lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Left parietal and occipital lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Occipital and temporal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Right occipital and temporal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Left occipital and temporal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Temporal and parietal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Right temporal and parietal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Left temporal and parietal lobes, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Thalamus, pulvinar and geniculate bodies, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Pons and cerebellum, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Spinal cord and nerve roots (combined site) (body structure) | Is a | True | Combined site | Inferred relationship | Some |  | 
| Spinal cord and medulla, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Spinal cord and meninges, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Spinal cord and optic nerve, CS | Is a | True | Combined site | Inferred relationship | Some |  | 
| Vitreous and retina, CS | Is a | True | Combined site | Inferred relationship | Some |  |