The peripheral nervous system (PNS) is critical for connecting the central nervous system (CNS) to the rest of the body. It is essential for bodily functions such as movement, sensation, and autonomic processes.| Simply Psychology
The autonomic nervous system (ANS) is part of the peripheral nervous system (PNS) responsible for regulating involuntary bodily functions, such as heart rate, digestion, respiratory rate, and pupillary response.| Simply Psychology
The sympathetic nervous system is a branch of the autonomic nervous system that prepares the body for "fight or flight" responses during stressful situations. It increases heart rate, dilates pupils, and inhibits digestion, among other functions, to mobilize the body's resources for immediate action.| Simply Psychology
The parasympathetic nervous system is a subdivision of the autonomic nervous system (ANS), which regulates bodily functions outside of voluntary control, therefore being automatic. It is also called the ‘rest and digest' system as it conserves the body’s natural activity and relaxes the individual once an emergency has passed. It promotes relaxation, energy conservation, and recovery by slowing the heart rate, stimulating digestion, and facilitating other processes when the body is restin...| Simply Psychology
The fight or flight response is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. It prepares your body to either confront or flee from the threat by triggering changes like increased heart rate, quickened breathing, and heightened alertness.| Simply Psychology