부신 수질과 교감 신경계에서 분비되어 혈압을 상승시키고 심박수를 높이는 호르몬이자 신경 전달 물질.
A chemical released from the sympathetic nervous system in response to stress, acting as both a hormone and a neurotransmitter to increase heart rate and blood pressure.
예문:
"Norepinephrine plays a crucial role in the body's fight-or-flight response during stressful situations."
"The patient was given a norepinephrine drip to maintain their blood pressure during septic shock."
"Certain antidepressants work by increasing the levels of norepinephrine and serotonin in the brain."