Anatomy
·Thorax & Spine
Pleura & Pleural Recesses
⭐ PREMIUM
The pleura is a serous sac; its recesses and surface markings matter for pleural taps and pneumothorax.
LAYERS
• Visceral pleura (on the lung; insensitive — autonomic).
• Parietal pleura (on the wall/diaphragm/mediastinum; SENSITIVE — somatic, intercostal + phrenic nerves → localised pain).
• Pleural cavity: a potential space with a thin fluid film (negative pressure keeps the lung expanded).…
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