Dome-Shaped Muscle Located Below the Lungs
This page is the CodyCross answer for the clue below from California, Group 1159, Puzzle 3 (Giant Sequoias).
Question is: Dome-Shaped Muscle Located Below the Lungs
and the answer is: DIAPHRAGM
Word Meaning:
DIAPHRAGM — (anatomy) In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs.
Definitions from Wiktionary.