Humans and other mammals breathe in oxygen from the air for respiration. Breathing allows us to pull air into our lungs so that we can use the oxygen it contains. A muscle below the lungs, the diaphragm, contracts and flattens when you inhale. This process the pressure in the lungs, causing external air to rush into the lungs. When the diaphragm relaxes, it pushes against the lungs, this process the pressure inside the lungs and pushes the air out. A) decreases; increases B) decreases; decreases C) increases; decreases D) increases; increases
Humans and other mammals breathe in oxygen from the air for respiration. Breathing allows us to pull air into our lungs so that we can use the oxygen it contains. A muscle below the lungs, the diaphragm, contracts and flattens when you inhale. This process the pressure in the lungs, causing external air to rush into the lungs. When the diaphragm relaxes, it pushes against the lungs, this process the pressure inside the lungs and pushes the air out. A) decreases; increases B) decreases; decreases C) increases; decreases D) increases; increases
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter6: Solutions And Colloids
Section: Chapter Questions
Problem 6.109P
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Transcribed Image Text:Humans and other mammals breathe in oxygen from the air for respiration.
Breathing allows us to pull air into our lungs so that we can use the oxygen it
contains. A muscle below the lungs, the diaphragm, contracts and flattens when
you inhale. This process
the pressure in the lungs, causing external air
to rush into the lungs. When the diaphragm relaxes, it pushes against the lungs,
this process
the pressure inside the lungs and pushes the air out.
A) decreases; increases
B) decreases; decreases
C) increases; decreases
D) increases; increases
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