Which of the following statements about the diaphragm of a mammal is not correct? it

Which of the following statements about the diaphragm of a mammal is not correct? it
  • A.
    separates the thorax and the abdomen
  • B.
    is a thick layer of muscle
  • C.
    is made of epithelial cells
  • D.
    is part of the human respiratory apparatus
Correct Answer: Option C
Explanation
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