BioFlix Activity: Gas Exchange –Inhaling and Exhaling Reset Help INHALATION EXHALATION External intercostal muscles contract Internal intercostal mundos contra Ale unters body 2011 Diaphragm contracts (moves down) Diaphragm relaxes moves up Ar laves body
Answer
Answer
INHALATION EXHALATION Air enters body External intercostal muscles contract Air leaves body 9111 Internal intercostal muscles contract Diaphragm contracts (moves down) Diaphragm relaxes (moves up)
