What are the two types of supraglottic airways mentioned?

Supraglottic airways are devices that are designed to maintain an open airway and facilitate ventilation by creating a passageway above the glottis, the part of the larynx that includes the vocal cords. The two types specifically mentioned in the correct answer are the laryngeal mask airway (LMA) and the I-gel.

The laryngeal mask airway is a flexible, tube-like device that fits into the pharynx and has an inflatable cuff that helps seal the airway, allowing for positive pressure ventilation without having to be inserted into the trachea. The I-gel, on the other hand, is a newer design that does not require inflation and is made of a softer material that conforms to anatomical structures, providing a secure airway while minimizing trauma. Both these devices are commonly used in emergency situations and during surgeries when intubation may not be immediately necessary or feasible, making them critical tools in advanced airway management.

Other choices provided do not represent types of supraglottic airways. The bag-mask and oral airway are tools for manual ventilation but do not serve the same purpose as purposive airway creation above the glottis. A tracheostomy tube is an invasive airway device that requires