Related by context. Frequent words. (Click for all words.) 70 connective tissue 64 muscle tissue 62 collagen 62 myelin sheath 61 muscle fibers 60 soft tissues 59 skeletal muscles 58 elastin 58 blood vessels 57 extracellular matrix 57 peripheral nerves 56 nerve cells 56 fibroblasts 56 tendons 55 tissues 55 cytoskeleton 54 epithelial cells 54 muscles 54 nerve endings 54 fibrous 54 articular cartilage 54 Cartilage 53 dermis 53 fatty tissue 53 oligodendrocytes 53 capillaries 53 cell adhesion 53 subcutaneous fat 52 epithelium 52 nerve fibers 52 ligaments 52 proteins 52 GI tract 52 osteoclasts 52 myelin 52 fibrin 52 cartilage 51 epidermis 51 air sacs 51 fibrils 51 calcium absorption 51 osteoblasts 51 skeletal muscle 51 glial cells 51 microtubules 51 bone 51 lymphatic system 51 digestive enzymes 51 tissue 50 cell membranes 50 mucous membranes 50 pancreatic cells 50 scar tissue 50 chitin 50 protein 49 axons 49 vasculature 49 motor neurons 49 proteases 49 endothelial cells 49 thyroid hormones 49 adipose tissue 49 intestines 49 enzymes 49 glutamine 49 membranes 49 artery walls 49 Adult stem cells 49 joints 49 hair follicles 49 lipids 49 endometrium 48 fatty acids 48 amino acids 48 intestinal tract 48 spinal column 48 spinal cord 48 microtubule 48 mitochondria 48 pancreas 48 salivary glands 48 cilia 48 mucosa 48 uric acid 48 macromolecules 48 metabolic processes 48 bile ducts 48 epithelial 48 immune cells 48 synapse 48 outer layer 48 alpha synuclein 48 digestive tract 47 oxidants 47 glutathione 47 vertebral 47 lipid metabolism 47 bone resorption 47 keratin 47 chronic inflammation 47 signaling molecules