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JulsSmile [24]
3 years ago
10

HELP PLEASE!

Biology
2 answers:
belka [17]3 years ago
6 0
The Trachea is the main breathing muscle
Furkat [3]3 years ago
5 0
The diaphragm is the right answer!

"Diaphragm. The diaphragm is the major muscle responsible for breathing. It is a thin, dome-shaped muscle that separates the abdominal cavity from the thoracic cavity. During inhalation, the diaphragm contracts, so that its centre moves caudally (downward) and its edges move rostrally (upward)."
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