Answer:
Explanation:
inspiration 1. inspiratory muscles contract. ...
inspiration 2. thoracic cavity volume increases.
inspiration 3. lungs are stretched. ...
inspiration 4. intrapulmonary pressure drops.
inspiration 5. air flows into lungs down pressure gradient until pulmonary pressure is 0.
It should be 2, pituitary gland. (: It's referred as the master gland.
I hope all is well, and you pass. Good luck, rockstar!
The answer is letter a because that is very true if you get hooked on that it can and most likely will lead to death.
