Related by context. Frequent words. (Click for all words.) 66 rectum 66 intestines 66 intestine 65 uterus 64 esophagus 61 small intestine 61 trachea 59 urethra 59 abdomen 58 digestive tract 57 bloodstream 56 aorta 56 incision 56 anus 56 colon 55 gastrointestinal tract 55 cavity 54 bladder 54 internal organs 53 ovary 53 blood vessels 53 cervix 53 left ventricle 53 cysts 53 lungs 53 diaphragm 53 ear canal 52 windpipe 52 endoscope 52 gallbladder 52 vital organs 52 pus 52 bowel 51 spinal cord 51 uterine 51 pancreas 51 vagina 51 capillaries 51 prostate gland 50 gland 50 spinal column 50 sac 50 pouch 50 incisions 50 catheter 49 lung tissue 49 nostril 49 lymphatic system 49 artery 49 membranes 48 soft tissues 48 ventricle 48 duct 48 respiratory tract 48 sinuses 48 womb 48 tissue 48 lymph nodes 47 urinary tract 47 tissues 47 placenta 47 forceps 47 membrane 47 tube 47 suction 47 clot 47 spinal fluid 47 amniotic fluid 47 airway 47 muscle tissue 47 intestinal 47 liver 46 cyst 46 belly button 46 gastric 46 rectal 46 ducts 46 rib cage 46 abdominal 46 ovaries 46 stomach 46 clitoris 46 coronary artery 45 vaginal 45 secretions 45 saline 45 fluids 45 cell membrane 45 breast tissue 45 gall bladder 45 coronary arteries 45 optic nerve 45 venous 44 cavities 44 armpit 44 spleen 44 nipple 44 sutures 44 nostrils 44 kidneys 44 pelvis