Respiratory System Anatomy and Physiology Quiz

Respiratory System

• The alveoli, tiny air sacs located at the end of bronchioles, are responsible for gas exchange between the lungs and the circulatory system.
• The visceral pleura, a thin layer of tissue, directly lines the thoracic visceral cavity and adheres to lung tissue.
• The mediastinum, a region in the thoracic cavity, contains the heart and great vessels, esophagus, and trachea.
• The ribs and sternum, bony structures in the thorax, assist in both inspiration and expiration.
• The upper respiratory tract consists of the nasal cavity, pharynx, and larynx.