peripheral nervous system Flashcards
function of PNS
sends messages to and from the CNS via neurons
division of the PNS
autonomic nervous system
somatic nervous system
what is the ANS responsible for with examples
involuntary response for vital functions e.g breathing, digestion and the stress response
what does the ANS control
smooth and cardiac muscle and glands
where is the ANS control centers
brain stem
what are the two branches in the ANS
sympathetic
parasympathetic
role of sympathetic branch
fight or flight response
role of parasympathetic branch
conserve and restore body energy when relaxed
what is the SNS responsible for with example
voluntary movement eg walking
what does SNS control
skeletal muscles
carries commands from the motor cortex
how does ANS and SNS differ
ANS is responsible for involuntary response where as SNS is responsible for voluntary movement
ANS control smooth and cardiac muscle and glands where as SNS control skeletal muscle and carries commands from the motor cortex
ANS control center are found in the brain stem where as SNS carries commands from the motor cortex and connects the CNS to the sense
the SNS has sensory and motor pathways, while the ANS is purely motor