Diaphragm


 
 
Concept Explanation
 

Diaphragm

Diaphragm: 

Lungs are situated inside the chest cavity, and they rest on a large muscular sheet called the diaphragm, which forms the floor of the chest cavity. Diaphragm is a membrane  which is present between the chest and abdomen. When you breathe in, your diaphragm and rib cage get into action. The diaphragm is protected by rib cage. The diaphragm plays an important role in inhalation and exhalation.

The breathing is controlled by the movement of diaphragm. The movement of diaphragm is controlled by a group of muscles called intercostal muscles.

When the diaphragm moves downwards, the rib cage expands. This leads to the expansion inside the lungs.

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Sample Questions
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Question : 1

Lungs are situated inside the chest cavity, and they rest on a large muscular sheet called the ________________ .

Right Option : A
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Question : 2

What is the function of the diaphragm in the human body?

Right Option : C
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Question : 3

Which of the following is correct?

A) The diaphragm is a muscular sheet located between the chest and abdomen.

B) During inhalation, the diaphragm moves upwards, causing the lungs to expand.

Right Option : B
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