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Lung Prematurity
Educational only: videos on MedicalVideos.com are for general information and are not medical advice. Always consult your own doctor about your health.
Pulmonary surfactant is a mixture of lipids and proteins that is produced by alveolar type II epithelial cells (AEC2) and secreted into the airspaces. Phospholipids are the major component of surfactant by weight, and are essential for lowering surface tension at the air-liquid interface, which prevents alveolar collapse at end-expiration. Four proteins highly expressed in the lung and found in surfactant are designated surfactant proteins (SP) A, B, C, and D. Additional proteins including ABCA3 and NKX2.1 are also important for the production of functional surfactant. The surfactant proteins are developmentally regulated, such that their expression increases in later gestation
This video in 30 seconds
This video covers pulmonary surfactant in the context of lung prematurity. It explains surfactant as a mixture of lipids and proteins produced by alveolar type II epithelial cells and secreted into the airspaces, with phospholipids lowering surface tension to prevent alveolar collapse at end-expiration.
Key points
- Explains surfactant as lipids and proteins produced by alveolar type II epithelial cells
- Covers phospholipids lowering surface tension at the air-liquid interface to prevent alveolar collapse
- Names surfactant proteins A, B, C and D and other proteins important for functional surfactant
- Notes surfactant protein expression is developmentally regulated and increases in later gestation
Video Overview
This video presents “Lung Prematurity” — Pulmonary surfactant is a mixture of lipids and proteins that is produced by alveolar type II epithelial cells (AEC2) and secreted into the airspaces. Phospholipids are the major component of surfactant by weight, and are essential for. Whether you are preparing for a procedure, studying the technique, or learning how a condition is assessed, the recording shows the process as it is performed in practice.
From our Anaesthesia collection: Anesthesia videos: intubation, spinal and epidural anesthesia, general anesthesia techniques and patient monitoring explained step by step. Browse all Anaesthesia videos →
Educational content only — not a substitute for professional medical advice.
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Founded by Dr. Mohamed Ibrahim, MD, PhD — physician-scientist.
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