title: Control of the duration of expiration.
mesh_terms: D000009:Abdominal Muscles / Q000502:physiology; D000403:Airway Resistance; D000818:Animals; D002245:Carbon Dioxide; D002415:Cats; D003964:Diaphragm / Q000502:physiology; D004576:Electromyography; D005246:Feedback; D007830:Larynx / Q000502:physiology*; D012119:Respiration; D013147:Spirometry; D014628:Vagotomy; D014630:Vagus Nerve / Q000502:physiology*
chemical_list: D002245:Carbon Dioxide