180 likes | 277 Vues
Explore the vital role of the respiratory system in oxygenation and gas exchange, as well as the impact of smoking on lung health. Learn about the respiratory organs and how they facilitate breathing and maintain air quality for optimum respiratory functions.
E N D
Respiratory Functions I. Provide surface area for the diffusion of gasses A. Oxygen (To be transported to the cells for aerobic respiration) B. Excrete carbon dioxide II. Warm, moisten, and filter inspired air
Respiratory Organs • Breathing structures Nose (Filters air) Sinuses (Warm and moisten air) Pharynx Trachea Lungs a. Bronchi b. Bronchioles c. Alveoli
Respiratory Organs Accessory structures Diaphragm Contraction results in inhalation Relaxation results in exhalation Vocal cords