The autonomic nervous system is divided into two main branches: the sympathetic nervous system and the parasympathetic nervous system. Each branch is responsible for different functions in the body.
1. Digestion: The parasympathetic nervous system is responsible for promoting digestion and other activities that occur during rest and digest mode.
2. Flight or emergencies: The sympathetic nervous system is responsible for the "fight or flight" response, which prepares the body to deal with emergencies or stressful situations by increasing heart rate, dilating airways, and releasing adrenaline.
3. Conservation of energy: The parasympathetic nervous system helps conserve energy by promoting activities such as digestion, lowering heart rate, and promoting rest and relaxation.
4. Rest and relaxation: The parasympathetic nervous system is involved in promoting rest and relaxation by slowing down heart rate, promoting digestion, and conserving energy.
5. Fight or stress: The sympathetic nervous system is responsible for the "fight or flight" response during stressful situations, preparing the body to either confront the stressor or flee from it.
In summary, the parasympathetic nervous system is associated with rest, digestion, and energy conservation, while the sympathetic nervous system is linked to responses related to emergencies, stress, and the "fight or flight" reaction.
