When swallowing food, what leaf-shaped structure prevents it from entering the respiratory tract?

____________ is the term used for any medication or drug that has an effect on mucus secretion

a. Mucoregulatory agent b. Mucospissic agent c. Mucoactive agent d. Mucokinetic agent e. Mucolytic agent

Which of the following are currently used methods for delivering surfactant into infants? 1. Instillation through side-port adapter 2. Instillation through catheter 3. Nebulization 4. Extracorporeal membrane oxygenation (ECMO)

a. 1 and 2 only b. 1 and 3 only c. 1, 2, and 3 only d. 1, 2, 3, and 4