Related by context. Frequent words. (Click for all words.) 72 muscle fibers 68 skeletal muscle 66 muscles 65 fatty tissue 65 blood vessels 62 tissue 62 hair follicles 62 cartilage 61 connective tissue 60 tissues 59 adipose tissue 59 collagen 59 muscle 58 nerve cells 58 tendons 58 intestines 58 internal organs 57 soft tissues 57 bone 57 spinal cord 56 nerve endings 56 glycogen 56 pancreas 56 lung tissue 56 digestive tract 55 fibroblasts 55 abdominal muscles 55 epidermis 55 capillaries 55 intestinal tract 55 motor neurons 54 metabolism 54 GI tract 53 immune cells 53 scar tissue 53 liver 53 nerve fibers 53 gastrointestinal tract 52 intestine 52 mitochondria 52 myelin 52 epithelial cells 52 lipids 52 left ventricle 52 cells 52 protein 52 visceral fat 51 axons 51 progenitor cells 51 small intestine 51 metabolic 51 spinal column 50 vital organs 50 protein synthesis 50 uric acid 50 proteins 50 lungs 50 adrenal glands 50 uterus 50 cell membranes 50 ventricles 50 aorta 50 bloodstream 50 bones 50 testes 50 spinal cords 49 stem cells 49 lactic acid 49 tumor cells 49 belly fat 49 endothelial cells 49 leptin 49 fatty acids 49 follicles 49 lymphocytes 49 skin 48 outer layer 48 prions 48 arteries 48 cell membrane 48 inflammation 48 mucus 48 facial muscles 48 ligaments 48 lymphatic system 48 neurons 48 enzyme 48 synapse 48 urethra 48 brain 48 insulin sensitivity 48 soft tissue 48 abdominal fat 47 bone marrow 47 insulin resistance 47 fibrous 47 optic nerve 47 edema 47 joints 47 clot 47 prostate gland