Related by context. Frequent words. (Click for all words.) 69 ventricles 61 ventricle 55 Atrial fibrillation 53 atrial 53 left ventricle 51 blood vessels 51 ventricular 50 myocardium 50 clot formation 50 electrical impulses 50 ventricular fibrillation 49 capillaries 48 oxygenated blood 48 tachycardia 48 aorta 48 pulmonary artery 48 air sacs 48 lungs 48 duodenum 47 dermis 47 circulatory system 47 urethra 47 clot 47 nerve impulses 46 vasculature 46 diaphragm 46 intestines 46 nasal cavity 46 carotid arteries 46 arrhythmias 45 bile ducts 45 optic nerve 45 pulsate 45 spinal canal 45 peripheral nerves 45 coronary artery 45 vagus nerve 45 hypertrophy 45 muscle contractions 45 skeletal muscles 45 intestine 44 epithelium 44 intestinal tract 44 fallopian tube 44 cochlea 44 lung tissue 44 irregular heartbeats 44 muscle fibers 44 arrhythmia 44 fibrillation 43 nerve fibers 43 optic nerves 43 dilated cardiomyopathy 43 uterus 43 thalamus 43 mucosa 43 clots 43 pulsing 43 thrombus 43 artery walls 43 coronary arteries 43 GI tract 42 arteries 42 salivary glands 42 septum 42 plasma membrane 42 diastolic pressure 42 ventral 42 small intestine 42 diastolic 42 cardiomyocytes 42 trachea 42 cilia 42 nerve endings 42 esophagus 41 autonomic nervous system 41 digestive tracts 41 nasal passages 41 cannula 41 cell membrane 41 abdominal cavity 41 muscle tissue 41 epidermis 41 nerve cells 41 atrium 41 fallopian tubes 41 brainstem 41 digestive tract 41 fibroblasts 41 urinary tract 41 connective tissue 41 bile duct 41 upper airway 40 venous 40 soft tissues 40 urinary bladder 40 breastbone 40 axons 40 testis 40 heartbeats 40 fatty tissue