nervous system Flashcards
(11 cards)
what is in the central nervous system
consists of brain and spinal cord
what is in the peripheral nervous system
all nerves outside CNS that make up the body send signals back to CNS
what controls voluntary actions
somatic nervous system
What does the autonomic nervous system do
controls involuntary actions
what are the divisions of the autonomic nervous system
sympathetic and parasympathetic nervous systems
what is the sympathetic nervous system
controls fight or flight systems
what is the parasympathetic nervous system
activated when emergency stops and relaxes the body
what are the 3 types of neurones
sensory motor relay
function of sensory neurones
carry nerve impulses from sensory receptors to spinal cord to the brain
function of relay neurones
allow sensory and relay neurones to communicate found in CNS
function of motor neurones
send signals from CNS to effector muscles
