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Organ System Integration

Respiratory System Complete Content Map

Integrated coverage of embryology, anatomy, histology, physiology, pathology, and pharmacology. Each module includes core topics, high‑yield subtopics, and clinical correlations for Step 1 mastery.

6
Core domains
60+
Core subtopics
50+
Clinical correlations
🫁 Respiratory Curriculum
Mapped to USMLE Step 1 content outline. Each block below links to a dedicated module with full hierarchical breakdown — core topics, high‑yield details, and clinical correlations.
2.1

Embryology

Respiratory development timeline, lung bud, surfactant, congenital anomalies (diaphragmatic hernia, sequestration).

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2.2

Gross Anatomy

Airway anatomy, lung lobes and fissures, pleura, diaphragm, muscles of respiration.

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2.3

Histology

Respiratory epithelium, airway cell types, alveolar cell types, blood-air barrier.

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2.4

Physiology

Lung volumes, spirometry, compliance, gas exchange, V/Q matching, O₂/CO₂ transport, control of breathing.

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2.5

Pathology

Obstructive lung disease (COPD, asthma, bronchiectasis), restrictive lung disease, infections, lung cancer, pleural disease.

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2.6

Pharmacology

Bronchodilators (β₂-agonists, anticholinergics, methylxanthines), anti‑inflammatories (corticosteroids, leukotriene modifiers), mucolytics, pulmonary vasodilators, antitussives.

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