nervous system

Cards (9)

what is an effector
muscle or a gland
what does a neurone do
transmit information rapidly as electrical impulses
what is a stimulus
change in environment
what does a myelin sheath do
insulates and protects impulses
what do receptors do
detect change in environment and send impulses along sensory neurone
what is the role of the CNS
to coordinate a response
structure of sensory neurone
one long dendron-carries nerve impulses from receptor cells to cell body
one short axon-carries nerve impulses from cell body to CNS
structure of motor neurone
many short dendrites to carry nerve impulses from CNS to cell body
one long axon- carries nerve impulses from cell body to effector cells
structure of relay neurone
many short dendrites-carry impulses from sensory neurones to cell body
axon-carries nerve impulses from cell body to motor neurones