Related by context. Frequent words. (Click for all words.) 67 sinuses 66 nasal passages 65 nasal cavity 61 lungs 59 trachea 58 intestines 58 ear canal 56 nostril 56 urethra 56 mucus 56 chest cavity 55 esophagus 55 mucous 55 intestine 55 abdominal wall 55 sinus 55 capillaries 54 abdominal cavity 54 nostrils 54 GI tract 54 digestive tract 53 blood vessels 53 respiratory tract 52 septum 52 cornea 52 airways 52 epithelium 52 upper airway 51 small intestine 51 aorta 51 mucous membranes 51 secretions 51 nasal 50 abscesses 50 diaphragm 50 lung tissue 50 clot 50 soft tissues 50 muscle tissue 50 bloodstream 50 windpipe 50 eardrum 50 uterus 50 artery 49 salivary glands 49 intestinal tract 49 hair follicles 49 vagina 49 inflammation 49 cannula 49 scar tissue 48 carotid arteries 48 anus 48 arteries 48 pulmonary artery 48 bowel 48 gastrointestinal tract 48 optic nerve 48 gums 48 airway 48 pores 48 abdomen 48 lung 48 tonsils 47 abscess 47 gland 47 urinary tract 47 rib cage 47 vocal cords 47 sciatic nerve 47 epidermis 47 cyst 47 internal organs 46 sweat glands 46 armpit 46 ribcage 46 spinal cord 46 eyelids 46 spinal column 46 sternum 46 incision 46 saline solution 46 tendons 46 ventricles 46 fallopian tubes 46 colon 46 cavity 46 cavities 45 bladder 45 bronchial 45 aortic valve 45 pus 45 coronary artery 45 eye socket 45 inner ear 45 rectum 45 circulatory system 45 atria 45 soft tissue 45 tendon 45 glands