Related by context. Frequent words. (Click for all words.) 61 ventricles 59 left ventricle 58 circulatory system 57 blood vessels 57 oxygen 55 oxygenated 55 capillaries 55 oxygenation 55 bloodstream 54 pulmonary artery 54 ventricle 52 clot busting drugs 51 vital organs 51 lungs 51 nerve impulses 51 aorta 51 clotting 51 intestines 50 arteries 50 clot 50 pancreas 50 electrical impulses 50 nutrients 50 cerebrospinal fluid 50 circulatory 50 vasculature 49 heme 49 carotid arteries 49 lymph 49 artery 49 abdominal cavity 48 atria 48 adrenal glands 48 amniotic fluid 48 diaphragm 48 autonomic nervous system 48 thyroid hormone 48 digestive enzymes 47 chest cavity 47 islet cells 47 respiration 47 vagus nerve 47 fatty tissue 47 small intestine 47 uterus 47 ventricular fibrillation 46 kidneys 46 spinal fluid 46 muscle tissue 46 electrical pulses 46 intestine 46 gastrointestinal tract 46 blocked arteries 46 lymphatic system 46 coronary arteries 46 cannula 45 coronary artery 45 rumen 45 hair follicles 45 platelets 45 lymphocytes 45 sweat glands 45 urethra 45 trachea 45 brainstem 45 neutrophils 45 nitric oxide 45 muscle contractions 45 immune cells 45 liver 45 venous 45 retinal cells 44 optic nerve 44 NK cells 44 skeletal muscle 44 motor neurons 44 secretions 44 tissues 44 malignant cells 44 metabolize 44 internal organs 44 ischemia 44 placenta 44 tumor cells 44 epinephrine 44 abdominal wall 44 sebum 44 lactate 44 chest compressions 43 clots 43 tPA 43 cardiopulmonary bypass 43 combustion chamber 43 digestive tract 43 GI tract 43 Platelets 43 ejection fraction 43 hypertrophy 43 metabolized 43 plasma membrane 43 oxygen saturation