Memory Structure of the Respiratory SystemVersión en línea Match the term to the description por Idafe Perez Jimenez External intercostal muscles Where the nasal cavity and oral cavity meet A muscular sheet that is involved in respiration A tube made up mainly of cartilage that takes air to the lungs Cilia Covers the trachea to stop food or liquid entering the lungs Small sac-like structures involved in gaseous exchange in the lungs Smaller branches of bronchi that lead to the alveoli Trachea Pharynx Bronchus Bronchioles Splits into left and right branches for each lung Diaphragm Alveoli Epiglottis Known as the voice box or Adam's apple Fine hairs in the respiratory structures that trap particles and foreign objects Help move the rib cage and sternum upwards and outwards during inspiration Larynx