Question

what opposing forces generate the pressure found within the pleural cavity (intrapleural pressure)? select all that apply.
check all that apply
surface tension caused by the serous fluid within the pleural cavity
elastic recoil of the lungs tissue inward
intrapulmonary pressure
atmospheric pressure
outward pull of the thoracic cage

Explanation:

Intrapleural pressure is the pressure within the pleural cavity. The forces that generate it include the elastic recoil of the lungs tissue inward (which tends to collapse the lungs) and the outward pull of the thoracic cage (which tends to expand the space). Surface tension caused by serous fluid in the pleural cavity also plays a role in keeping the lungs adhered to the thoracic wall. Intra - pulmonary pressure is the pressure within the alveoli and is not a direct force generating intrapleural pressure. Atmospheric pressure is the pressure of the air outside the body and is not a direct force for intrapleural pressure generation.

Answer:

surface tension caused by the serous fluid within the pleural cavity, elastic recoil of the lungs tissue inward, outward pull of the thoracic cage