血管扩张神经

例句：

1. 1. The doctor prescribed a medication totreat the patient's condition.
   医生开了一种药物来治疗病人的状况。
2. 2. Vasoconstriction is a common response tostress.
   血管收缩是应对压力的常见反应。
3. 3. During exercise, the body releases endorphins that can cause vasodilation.
   运动时，身体会释放内啡肽，这可能导致血管扩张。