Statement 1: Diaphragm is a muscular wall.
Statement 2: Diaphragm separates the thoracic and abdominal cavities.

Statement 1 is true and statement 2 is false

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Statement 1 is false and statement 2 is true

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Both the statements are true

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Both the statements are false

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Solution

The correct option is C Both the statements are true
Diaphragm is a muscular wall that sits at the base of the chest and separates the thoracic cavity, containing the heart and lungs, from the abdominal cavity and performs an important function in respiration. As the diaphragm contracts, the volume of the thoracic cavity increases and the air is drawn into the lungs.

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