At the end of this unit, the student should be able to:

• Describe the structural and functional aspects of respiratroy system.
• Identify the mechanics of breathing.
• Identify the factors that determine gas exchange in the lung, oxygen and carbon-dioxide transport in normal and disease states.
• Be acquainted with embryonic development, fetal maturation and perinatal changes of respiratory system, and understand some common congenital abnormalities.
• Identify the microorganisms, allergens and environmental pollutants, especially smoking, which causes diseases of respiratory system.
• Identify the basic and the clinical pharmacology of drugs used for treating common diseases of the respiratory system.
• Understand the epidemiology and community aspects of respiratory diseases.
• Acquire practical laboratory skills related to respiratory functions.
• Perform clinical examination of the respiratory system.