Imagine you are trying to fit down an aisle at the local store that is filled with boxes.In order to squeeze between two stacks of boxes you need to "suck it in." Which of the following descriptions best explains why "sucking it in" isn't the best way to fit through a tight space?
A)While sucking it in,your diaphragm contracts and moves down,causing the lung volume to increase.This causes the rib cage to move up and out,making your chest expand.
B)While sucking it in,your diaphragm contracts and moves upward,causing the lung volume to increase.This causes the rib cage to move up and out,making your chest larger.
C)While sucking it in,your diaphragm contracts and moves down,causing the lung volume to decrease.This causes the rib cage to move up and out,making your chest larger.
D)While sucking it in,your diaphragm contracts and moves down,causing the lung volume to increase.This causes the rib cage to move down and out,making your chest larger.
E)While sucking it in,your diaphragm contracts and moves upward,causing the lung volume to increase.This causes the rib cage to move down and out,making your chest larger.

Question

Quizplus · Accepted Answer

When you "suck it in," your diaphragm contracts and moves down, increasing lung volume and causing the rib cage to move up and out, which actually expands the chest rather than making it smaller.

Imagine You Are Trying to Fit Down an Aisle at the Local