Explore the intricacies of the sympathetic nervous system in this comprehensive 16-minute video lecture. Delve into the fight-or-flight response, examining its neurophysiological mechanisms and the role of the adrenal medulla. Learn about the functions of the sympathetic nervous system and the effects of norepinephrine on various body systems. Gain a deeper understanding of how the body responds to stress and prepares for action through this detailed exploration of sympathetic physiology.