未知题型
A 12-year-old girl is brought to the emergency room with difficulty in breathing. On examination she is found to have dyspnea with audible wheezes and is diagnosed with asthma. The patient is given an inhaled medication (albuterol), which provides immediate relief of the bronchial constrictive symptoms. Questions 1. What autonomic nervous system (ANS) receptor does this medication target? 2. What is the mechanism of action when these receptors are stimulated? 3. What neurotransmitters or hormones normally activate these receptors? 4. Which kind of nerve fiber or gland release these neurotransmitters or hormones?
【参考答案】
1. Albuterol targets beta-2 adrenergic receptors (β2-adrene......
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