Transcript The Central Nervous System

The Central Nervous
System
By: Chase Lewis
Central Nervous System
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The two main parts of
the central nervous
system are the brain
and spinal cord.
The brain is the
control center.
The spinal cord is the
main highway.
The nerves (neurons)
are the signal carriers.
The Brain
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The brain is the
control center of the
body.
The average adult
human brain weighs 3
pounds.
The brain contains
about 100 billion
nerve cells.
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Your brain is about
2% of your total body
weight but uses 20%
of your body's energy.
The energy used by
the brain is enough to
light a 25 watt bulb.
Parts of The Brain
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The frontal lobe –
This part of the brain is
the primary command and
control center of your
brain. It is responsible for
reasoning and problem
solving along with
judgment and impulses. It
can also be involved in
motor control and memory.
The Parietal Lobe - This
part of the brain helps to
process pain and touch
sensation. It is also
involved in cognition.
Parts of The Brain
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The Temporal Lobe
helps to process
sound sensation as
well as language. It is
also involved in
emotion, memory and
speech.
The Occipital Lobe is
involved in visual
sensation and
processing. The part
which controls and
interprets vision
resides there
Parts of The Brain
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The Pons - It is also
involved controlling
automatic body
functions.
The Cerebellum - This
part deals primarily
with controlling
movement. It helps to
control posture and
balance as well as
helping people to
learn movement.
Parts of The Brain
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The cerebrum is the most
highly developed part of
the human brain. It is here
that things like perception,
imagination, thought,
judgment, and decision
occur.
Brain Stem:
The brainstem is the region
of the brain that connects
the cerebrum with the
spinal cord. Motor and
sensory neurons travel
through the brainstem
allowing for the relay of
signals between the brain
and the spinal cord.
The Spinal Cord
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The spinal cord is the
main pathway for
information
connecting the brain
and peripheral
nervous system.
A pair of spinal nerves
leaves each segment
of the spinal cord.
The length of the
spinal cord is about 45
cm in men and 43 cm
in women.
Parts of The Spinal Cord
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Cervical Nerve
branches off from
the nerves in the
spinal cord. The
cervical nerves are
responsible for
relaying messages
and ensuring
functioning to
different body
parts.
C1-C8 controls the
head, diaphragm,
upper body
muscles, wrist
extensors, triceps,
and hand.
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Thoracic spine
refers to the
upper- and
middle-back.
T1-T12 controls
the chest and
abdomen
muscles.
Thoracic spine is
built for stability.
This stability
plays an
important role in
holding the body
upright and
providing
protection for
the vital organs
in the chest.
Parts of The Spinal Cord
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Lumbar spine
has no spinal
cord and is
made up of a
large amount
of space for
the nerve
roots.
L1-L5 controls
the leg
muscles.
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Sacral nerve
is located at
the bottom of
the spine.
S1-S5 control
the bladder
and bowels.
Webliography
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http://www.spine-health.com
http://www.brainhealthandpuzzles.co
m
http://faculty.washington.edu/chudle
r/spinal.html
http://biology.about.com/od/
http://kidshealth.org/kid/htbw/brain.
html
http://www.cognifit.com/brain-parts