Xiana Condeover 5 years ago

HK is a 38 y/o patient admitted to the hospital 2nd degree to a stab wound over the L side of the mid back. Inferior to the Pt’s wound is currently closed with sutures but Pt still exhibits difficulty breathing even at rest, Auscultation reveals absent breath sounds over the L lung field and limited chest expansion. Which specific structure is affected? How does the condition change the normal physiologic functioning of the affected structure?