The thick muscular structure which is present below the pair of lungs is called:
Correct answer: B. Diaphragm
- A. Pharynx
- B. Diaphragm
- C. Bronchi
- D. None of these options are correct
Explanation
The diaphragm is a thin dome-shaped muscle that separates the thoracic cavity (lungs and heart) from the abdominal cavity (intestines, stomach, liver, etc.).
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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