What is the role of surfactant?Multiple ChoiceTo reduce surface tension within the fluid lining the alveoliTo cause the visceral and parietal pleurae to adhere togetherTo transport carbon dioxide in the bloodTo form a layer upon the cilia lining the respiratory tract

Surfactant in the lungs serves what purpose

Pulmonary surfactant:Is produced by type-I alveolar epithelial cellsFacilitates lung recoilReduces interaction between water moleculesIs made up of carbohydrates and lipids

Define structure and functions of the pleura, bronchi, bronchioles, and alveoli.1.  The substance that lines the alveoli to help keep them open: 2.  The smallest of the airways that do not participate in gas exchange: 3.  The serous membrane that covers the lungs: 4.  The fluid that reduces friction between the lungs and the thoracic cavity:  fluid.5.  The large airway that enters each lung at the hilum:

The function of the pleural fluid is*1 pointto keep the alveoli moist.to collect and trap foreign particles.to prevent the alveoli from collapsing.to reduce friction on surrounding tissu

How does the structure of the alveoli enhance lung function?Multiple choice question.Their maze-like shape makes the lung more resistant to infection.They increase the speed of inhalation and exhalation.They are filled with fluid that enhances gas transfer.They increase the surface area for gas exchange.