What happens to the thoracic cavity when the diaphragm tightens?
Understand the Problem
The question is asking about the physiological changes that occur in the thoracic cavity when the diaphragm tightens. This relates to concepts in human anatomy and physiology, specifically regarding the process of breathing.
Answer
The thoracic cavity increases in size when the diaphragm tightens.
When the diaphragm tightens, it contracts and moves downward. This increases the size of the thoracic cavity and decreases the pressure inside, facilitating inhalation as air is pulled into the lungs.
Answer for screen readers
When the diaphragm tightens, it contracts and moves downward. This increases the size of the thoracic cavity and decreases the pressure inside, facilitating inhalation as air is pulled into the lungs.
More Information
The process where inhalation occurs due to diaphragm contraction is known as diaphragmatic breathing. It's an efficient way to breathe, often used in meditation and respiratory physiotherapy.
Tips
A common mistake is thinking the thoracic cavity decreases in size when the diaphragm contracts. Remember, the diaphragm moves downward, increasing thoracic cavity volume.
Sources
- When the diaphragm tightens and moves , inhalation occurs. - BYJU'S - byjus.com
- Diaphragm and lungs - MedlinePlus Medical Encyclopedia - medlineplus.gov
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