A large flat muscle forming the floor of the chest cavity in humans is known as _____.
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A large flat muscle forming the floor of the chest cavity in humans is known as diaphragm.
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Answer:
The diaphragm is the large muscular sheet which forms the floor of the chest cavity.
Explanation:
Diaphragm contracts and relaxes during inhalation and exhalation of air. Apart from serving the function in respiration, the diaphragm is also involved in non-respiratory functions such as to expel vomit, urine, and feces from the body by increasing the intra-abdominal pressure; helps in childbirth.
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