Which of the following prevents collapsing
of trachea?
Muscles
b. Diaphragm
c. Ribs
d. Cartilaginous rings
Answers
Answered by
37
Answer:
CARTILAGINOUS RINGS....
PLEASE MARK IT AS BRAINLIEST
Answered by
0
Answer:
option d is correct.these rings are C-shaped as food pipe is present behind it
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