Regarding the glottis:

• A. when laryngeal adductors are paralysed there is inspiratory stridor
• B. abductors contract early in inspiration
• C. when abductors are paralysed, aspiration pneumonia may result
• D. the adductors are supplied by the vagus nerves, the abduction by the hypoglossal nerve
• E. in animals with bilateral cervical vagotomy, pulmonary oedema is purely secondary to aspiration