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The Nervous System (how the CNS respones (stimulus, receptor, sensory…
The Nervous System
how the CNS respones
stimulus
receptor
sensory neurone
CNS
motor neurone
effector
parts of the nervous system
central nervous system
- consists of the
brain
and
spinal cord
, the CNS is connected to the body by
sensory neurones
and
motor neurones
sensory neurones
- neurones that
carry information
as
electrical impulses
from the
receptors
to the CNS
motor neurones
- neurones that carry
electrical impulses
from the CNS to
effectors
effectors
- all of the
muscles, glands
which respond to nervous impulses
receptors
cells that detect
stimuli
many
different types
of receptors e.g. taste receptors on tongue
they can form part of a
larger, complex organs
synapses
synapse
- the
connection
between
two neurones
the nerve signal is transferred by
chemicals
which
diffuse
across the gap
these chemicals set of a
new electrical signal
in the
next
neurone