Answer:
Surfactant increases airflow. It has this effect on airflow because it reduces resistance to lung inflation. Airflow increased as predicted.
Explanation:
Pulmonary surfactant is a complex mixture of lipids and proteins secreted by the Type II alveolar cells. The major component of surfactant, dipalmitoyl-phosphatidylcholine (DPPC), is an amphiphatic phospholipid. The main function of the pulmonary surfactant is to reduce the surface tension at the air/liquid interface in the lungs by forming lining layer between the aqueous airway liquid and the inspired air. prevents alveolar and airway collapse at end-expiration and thus allows cyclic ventilation of the lungs. It decreases surface tension in the alveoli making it easier for the alveoli to increase surface area for gas exchange. By lowering alveolar surface tension, pulmonary surfactant provides two important benefits:
(1) it increases pulmonary compliance, reducing the work of inflating the lungs; and
(2) it reduces the lungs’ tendency to recoil, so they do not collapse as readily.
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Answer: Reinforcement
Explanation:
People learn through different ways. One way of learning is through the process called reinforcement. Reinforcements play a vital role in how fast a behavior is learned. Reinforcement means anything that triggers the likelihood of a response. Skinner proposed the theory of reinforcement.
Reinforcement can be by praising someone or nagging someone in the case of Bobby's mother. If the nagging eventually brings out a response from Bobby making him do the dishes without being told, a reinforcement has been applied.
