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The part of anatomy that internally divides the thoracic cavity from the abdominal cavity is the ?

A . mediastinum
B . umbilicus
C . viscera
D . diaphragm

User Vsxen
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2 Answers

2 votes
the diaphragm...just under the ribs
User Qohelet
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5 votes
that would be the diaphragm
User Georgiecasey
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