Related by context. Frequent words. (Click for all words.) 71 lymphatic system 69 lymphatic 55 gastrointestinal tract 54 digestive 54 lymph nodes 53 circulatory 52 circulatory system 51 intestine 51 digestive tract 51 GI tract 51 pancreas 51 colon 51 capillaries 50 blood vessels 50 intestinal 50 vasculature 49 intestines 49 abdominal cavity 49 inflammation 48 intestinal tract 48 bloodstream 48 cancerous cells 47 lymph node 47 venous 47 small intestine 47 malignant cells 47 lymphocytes 47 tumor cells 47 motility 47 lungs 47 metastasis 46 tumors 46 cerebrospinal fluid 46 macrophage 46 secretion 46 immune cells 46 tumor 46 cysts 46 fatty tissue 46 endocrine 45 epithelium 45 nasal cavity 45 connective tissue 45 cerebellum 45 gland 44 abdominal wall 44 macrophages 44 neutrophils 44 thyroid gland 44 epithelial cells 44 glands 44 fluid buildup 44 peripheral nerves 44 nerve fibers 44 hair follicles 44 mucous 44 adrenal gland 44 urinary tract 43 salivary glands 43 vascular 43 bladder 43 liver 43 spinal cord 43 esophageal 43 optic nerve 43 gallbladder 43 fallopian tube 43 malignant tumors 43 dermis 43 uric acid 43 uterine 43 cancerous tissue 43 abdominal 43 autophagy 43 adrenal glands 42 secretions 42 metastases 42 esophagus 42 digestion 42 fibrosis 42 urethra 42 pancreatic 42 thyroid 42 colonic 42 muscle tissue 42 respiratory tract 42 bowel 42 urinary 42 internal organs 42 soft tissues 42 tissues 42 cilia 42 adipose tissue 42 Tumors 41 left ventricle 41 prions 41 uterus 41 mucus 41 thymus 41 NK cells 41 cytokines