This document presents a comprehensive worksheet on the human respiratory system, addressing key aspects of its anatomy, physiology, and function. The worksheet delves into the alternative scientific terminology for the respiratory system, its major and minor functions, and the identification of structures within a provided diagram. It explores the different zones within the respiratory system, detailing the tissues and cells present in each. The document further examines the protective mechanisms of the respiratory system against environmental threats, followed by an analysis of ventilation and lung mechanics, including the pressures involved. It defines crucial concepts such as tidal volume, forced vital capacity, and dead space volume. The worksheet then explores the characteristics of the lungs that facilitate efficient gas exchange and details how oxygen and carbon dioxide are transported in the blood, including the role of hemoglobin and the oxyhemoglobin curve. Finally, the document investigates the control of breathing, including the location of the respiratory control center and chemoreceptors, and the likely impact of hyperventilation on blood pH. The answers provided offer detailed explanations for each question, making it a valuable resource for students studying human anatomy and physiology.