Which muscle separates the chest cavity from the abdominal cavity and assists in breathing?
A
Diaphragm
B
Intercostal muscles
C
Trapezius
D
Bicep
Correct Answer: Option A — Diaphragm
Explanation:
The diaphragm is a dome shaped muscle that separates the chest cavity from the abdominal cavity and contracts and relaxes to facilitate inhalation and exhalation.