nervous system Flashcards
nervous system:
central nervous system (CNS) and Peripheral nervous sytem (PNS)
CNS
PNS
carries messages to and from the PNS
other way round
CNS Inludes
Brain:resp for everything we think feel do
Spinal cord:connects brain and PNS, intitiates relfexes
PNS Inludes
Autonomic nervous system: connects CNS to body internal organs, resp fr involuntary movment
somatic:carries messeges from sensory receptors to CNS & motor info from the CNS, volunaty moevemnt
subdivision of autonomic
sympathetic: actvates omternal muscles,organs,glands to prepare body for action, fight or flight
parasymthathetic: calms body after action, “rest and digest”, homeostasis, descrease activity of visceral muscles
enteric: controls gastriontestinal tract, regulates digestion