title: Tracheal smooth muscle and rate of oxygen uptake.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D004058:Diffusion; D066298:In Vitro Techniques; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000378:metabolism*; D009929:Organ Size; D010101:Oxygen Consumption; D011048:Polarography; D013997:Time Factors; D014132:Trachea / Q000378:metabolism*
chemical_list: D000109:Acetylcholine