Question
The floor of the chest cavity has a thick muscular partition known as the diaphragm.
Answer: Option A
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A
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A
- The floor of the chest cavity has a thick muscular partition known as the diaphragm. It separates the abdominal cavity and the thoracic cavity.
- It performs a significant function in respiration. It moves up and down during inhalation and exhalation.
- Lowering of the diaphragm causes a decrease in the pressure on lungs. Due to which, air moves into the lungs through nose.
- When diaphragm rises up, pressure on the lungs increases. Due to which, air moves out.
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