USMLE Step 1: Respiratory System Histology, Diseases & Treatment

# 🩺 USMLE Step 1 - Study Guide ## 📋 Course Structure ``` 🏥 Respiratory System ├── 📖 Chapter 1: Histology and Embryology of the Respiratory System │ ├── 🔹 Respiratory Epithelium and Lung Cell Types │ ├── 🔹 Congenital Abnormalities │ └── 🔹 Pleura and Tonsils ├── 📖 Chapter 2: Microbiology and Immunology of Respiratory Diseases │ ├── 🔹 T Helper Cell Subsets and Cytokines │ └── 🔹 Hypersensitivity and Eosinophil Recruitment ├── 📖 Chapter 3: Obstructive Lung Diseases: Emphysema, Chronic Bronchitis, and Asthma │ ├── 🔹 Emphysema │ ├── 🔹 Chronic Bronchitis │ ├── 🔹 Asthma │ └── 🔹 COPD Management ├── 📖 Chapter 4: Other Respiratory Diseases: Bronchiectasis, Hypersensitivity Pneumonitis, and Sarcoidosis │ ├── 🔹 Bronchiectasis │ ├── 🔹 Hypersensitivity Pneumonitis (HP) │ └── 🔹 Sarcoidosis ├── 📖 Chapter 5: Interstitial Lung Disease (ILD) and B2 Adrenergic Agonists │ ├── 🔹 Idiopathic Pulmonary Fibrosis (IPF) │ └── 🔹 B2 Adrenergic Agonists ├── 📖 Chapter 6: Muscarinic Antagonists, Methylxanthines, and Corticosteroids │ ├── 🔹 Muscarinic Antagonists │ ├── 🔹 Methylxanthines │ └── 🔹 Corticosteroids ├── 📖 Chapter 7: Leukotriene Modifiers, Immunotherapy, and Pleural Effusions │ ├── 🔹 Leukotriene Modifiers │ ├── 🔹 Immunotherapy │ ├── 🔹 Pleural Effusions