BRAINCAKEThe First Breath
When a newborn baby takes the first breath it uses a force 15-20 the normal force of inhalation to inflate the lungs.
The elastic tissue is stretched permanently and the lung surfactants made of phospholipid and hydrophilic and hydrophobic proteins stop the alveoli from collapsing as the baby exhales.
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More in Exchange Surfaces and Breathing
- Expiration
- Alveoli
- Role of Alveoli in Gas Exchange
- Asthma
- Measuring Lung Capacity
- Lung Volume
- Breathing Rate and Ventilation Rate
- Gas Exchange in Unicellular Organisms
All 24 lessons in Exchange Surfaces and Breathing · All OCR AS-level Biology topics