Which of the following promotes elastic recoil of the lungs?

a. elastic fibers in the lung.
b. surface tension of the fluid lining the alveoli.
c. pulmonary surfactant.
d. both (a) and (b) above.
e. all of these answers.


D

Anatomy & Physiology

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The ________ of the spinal cord contain the interneurons.   

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