ICSE Class 10 Answered

Functions of the sympathetic and parasympathetic nervous system:

• The sympathetic and parasympathetic divisions typically function in an opposite manner, with one division exciting, triggering, or activating a response that is countered by the alternate system, which serves to relax, decrease, or negatively modulate a process.
• The sympathetic division typically functions in actions requiring quick responses. The parasympathetic division functions with actions that do not require immediate reaction.
• The sympathetic division initiates the fight-or-flight response and the parasympathetic initiates the rest-and-digest or feed-and-breed responses.
• The sympathetic and parasympathetic nervous systems are important for regulating several vital functions, including respiration and cardiac contractility.