Which of the following is a cause of asthma?

A. Environmental chemicals that stimulate ?2-adrenergic receptors
B. Elevation of intrapleural pressure to equal atmospheric pressure
C. Loss of alveoli
D. Lack of pulmonary surfactant
E. Inflammation of the bronchioles


Answer: E

Anatomy & Physiology

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What is a main function of the myenteric plexus?

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Hormones that are secreted from the anterior pituitary are produced in:

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Which function of the respiratory system is the amount of carbon dioxide exhaled directly related to?

A. Gas exchange B. Speech C. Acid-base balance D. All of the answers are correct.

Anatomy & Physiology