title: The oxygen-transporting system in relation to age.
mesh_terms: D000328:Adult; D000367:Age Factors; D001810:Blood Volume; D001823:Body Composition; D002306:Cardiac Volume; D006339:Heart Rate; D006452:Hemoglobinometry; D006801:Humans; D008297:Male; D008875:Middle Aged; D009132:Muscles; D010100:Oxygen / Q000097:blood*; D005082:Physical Exertion; D011194:Potassium Isotopes; D012119:Respiration; D012129:Respiratory Function Tests; D013147:Spirometry; D014797:Vital Capacity; D014915:Whole-Body Counting
chemical_list: D011194:Potassium Isotopes; D010100:Oxygen