Radiographic Positioning & Related Anatomy: Chapter 2 Chest
Anatomy of the Respiratory System
1. Divisions of the Respiratory System:
- Pharynx
- Trachea
- Bronchi
- Lungs
2. Key Terms:
- Adam's Apple: Thyroid Cartilage
- Voice Box: Larynx
- Breastbone: Sternum
- Shoulder Blade: Scapula
- Collar Bone: Clavicle
3. Pleura:
- Definition: Delicate, double-walled sac or membrane containing the lungs.
- Parietal Pleura: Outer layer of the pleura adhering to the inner surface of the chest wall and
diaphragm.
- Pulmonary (Visceral) Pleura: Inner layer adhering to the surface of the lungs.
- Pleural Cavity: The potential space between the parietal pleura and visceral pleura.
### Conditions Related to the Pleura
1. Pneumothorax: Condition where air or gas enters the pleural cavity.
2. Empyema: Accumulation of pus in the pleural cavity.
### Lung Structures
1. Base: Lower, concave portion of the lungs.
2. Hilum (Hilus): Central area of the lungs where bronchi and blood vessels enter.
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