
acetylcholine
词源
From 'acetyl' (referring to the acetyl group) + 'choline' (a compound involved in fat metabolism), coined in early 20th century to describe this neurotransmitter.
noun
❶ 乙酰胆碱是一种重要的神经递质,在神经系统中传递信号,参与肌肉收缩、记忆和学习等多种生理功能。
“Acetylcholine is released at neuromuscular junctions to stimulate muscle contraction.”
(乙酰胆碱在神经肌肉接头处释放,刺激肌肉收缩。)
“The enzyme acetylcholinesterase breaks down acetylcholine in the synaptic cleft.”
(乙酰胆碱酯酶在突触间隙中分解乙酰胆碱。)
常见短语
acetylcholine receptor — 乙酰胆碱受体是能与乙酰胆碱结合的蛋白质,介导神经信号传递,分为烟碱型和毒蕈碱型两大类。
“Nicotinic acetylcholine receptors are targeted by nicotine in tobacco.”
(烟碱型乙酰胆碱受体是烟草中尼古丁的作用靶点。)
acetylcholine esterase — 乙酰胆碱酯酶是分解乙酰胆碱的酶,终止神经信号传递,其抑制剂可用于治疗某些神经系统疾病。
“Acetylcholine esterase inhibitors are used to treat symptoms of myasthenia gravis.”
(乙酰胆碱酯酶抑制剂用于治疗重症肌无力的症状。)