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Biopsychology
Nervous system
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Created by
Samuel Bulmer
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Cards (4)
What are the two subsystems the nervous system is divided into?
Central
nervous system (
CNS
)
Peripheral
Nervous system (
PNS
)
Describe the central nervous system:
Made up of the
brain
and the
spinal cord
Brain
=
cerebral cortex
is
outer
layer and highly
developed
in
humans
Spinal cord
=
Connects
the
brain
to the
PNS
and is
responsible
for
reflex actions
Describe the peripheral nervous system:
The
PNS
transmits
messages
via
millions
of
neurons
to and from the
CNS.
It is further subdivided into the:
Autonomic
nervous system = governs
vital
functions within the
body
such as
breathing
,
heart rate
,
digestion
,
sexual arousal
and
stress responses
Somatic
nervous system = governs
muscle movement
and
receives information
from
sensory receptors
What is the autonomic nervous system further subdivided into:
Sympathetic
nervous system =
Prepares
body for
fight
or
flight
Parasympathetic
=
Returns
body to
normal
after
fight
or
flight.
sends messages to
organs
to
reverse
the effects of
sympathetic