Which system prepares the body for action, such as flight or fight?

The sympathetic nervous system is responsible for preparing the body for action in stressful or threatening situations, commonly referred to as the 'fight or flight' response. When faced with a perceived threat, the sympathetic nervous system triggers a series of physiological changes that help the body respond quickly. This includes increased heart rate, heightened blood pressure, and the release of adrenaline, which all work together to prepare the muscles and organs for immediate physical activity.

In contrast, the central nervous system primarily consists of the brain and spinal cord, serving as the main control center for the body and processing information. The parasympathetic nervous system works to promote a rest-and-digest state, aiding in relaxation and recovery after stress has subsided. The endocrine system, while important for hormone regulation and bodily functions, does not specifically prepare the body for immediate physical responses in the way the sympathetic nervous system does during moments of stress.