Related by context. Frequent words. (Click for all words.) 69 internal organs 64 kidneys 64 organs 58 intestines 58 pancreas 58 liver 57 abdomen 54 spinal cord 54 aorta 53 lungs 53 blood vessels 51 kidney 51 spinal column 50 muscle tissue 50 intestine 49 lung 47 small intestine 47 tissues 47 tissue 47 uterus 46 digestive tract 46 trachea 46 ovaries 46 artery 46 arteries 46 optic nerve 45 muscles 45 cornea 44 cancerous cells 44 bone marrow 44 esophagus 43 limbs 43 livers 43 coronary arteries 43 extremities 43 coronary artery 43 windpipe 43 lung tissue 43 thyroid gland 43 circulatory 43 lymph nodes 43 carotid artery 42 spleen 42 organ 42 brain 42 tendons 42 grafts 42 torso 42 internal bleeding 42 tumor 42 ovary 42 corneas 42 retina 41 cancerous tumors 41 sternum 41 testicles 41 veins 41 tumors 41 ventilator 41 bloodstream 41 diaphragm 41 organ failure 41 bodily 41 pelvis 41 womb 41 spine 41 stem cells 41 blocked arteries 40 airway 40 clot 40 skull 40 cysts 40 soft tissue 40 gangrene 40 diseased 40 gastrointestinal tract 40 clotting 39 complications 39 gall bladder 39 aneurysm 39 rib cage 39 stomach 39 platelets 39 digestive 39 bullet wounds 39 marrow 39 cancerous tumor 38 surgically removed 38 surgically 38 placenta 38 adult stem cells 38 skin grafts 38 testes 38 fluids 38 cell membranes 38 scar tissue 38 gallbladder 38 femur 38 cells 38 appendages 38 blood clot