During human inhalation, the diaphragm ____ and the external intercostal muscles ____.
A) contracts; relax
B) relaxes; contract
C) contracts; contract
D) relaxes; relax
E) expands; vibrate
Correct Answer:
Verified
Q28: The concentration of _ has the greatest
Q29: Among air breathing animals, birds have the
Q30: During exhalation, the chest cavity _ in
Q31: The _ keeps the lungs from completely
Q32: The _ drive(s) inhalation by stimulating contraction
Q34: A _ uses positive pressure breathing to
Q35: Airways of the mammalian respiratory system function
Q36: During resting exhalation in humans, the diaphragm
Q37: During forceful exhalation, the _ muscles contract.
A)
Q38: The _ in the mammalian airway acts
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents