a flap-like structure that prevents food and liquids from entering the windpipe during swallowing

a small airway in the respiratory system that leads from the bronchi to the alveoli in the lungs

a major airway in the respiratory system that branches off from the trachea and leads to the lungsea

a thin membrane that lines the lungs and the inner surface of the chest cavity, providing a protective covering

the fluid-filled region between the visceral and parietal layers of the pleura that facilitates lung movement

a ring-shaped structure in the neck that supports the trachea and aids in the regulation of airflow during breathing

thin muscular bands in the larynx that vibrate to produce sound during speech and singing

elastic bands of tissue located within the larynx that vibrate to produce sound during speech and singing

the point in the trachea, or windpipe, where it divides into two smaller branches called the left and right main bronchi, which then lead to the respective lungs, facilitating the flow of air during breathing

small, air-filled sacs in the lungs where oxygen and carbon dioxide are exchanged between the air and bloodstream during respiration

a pair of mucous membrane folds in the larynx that help protect the airway and assist in sound modulation

a small airway in the lungs that connects respiratory bronchioles to alveolar sacs, facilitating the exchange of oxygen and carbon dioxide in the alveoli

a passage in the respiratory system that carries air from the trachea into the lungs