The Nervous System
By: Rayza Arevalo
What is the nervous system?

The nervous system is
the system of cells,
tissues, and organs
that regulates the
body's responses to
internal and external
stimuli.
Parts of the nervous system

Central nervous system (CNS): part of the
nervous system that consists of the brain and
spinal cord.
Parts of the nervous system

Brain: The part of the
central nervous system
that is located within the
skull. The brain functions
as the primary receiver,
organizer and distributor
of information for the
body. It has two (right and
left) halves called
"hemispheres."
Parts of the brain

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Frontal Lobe: Controls
personality, problem solving,
planning and organization. This
part of the brain is still developing
during the teen years
Occipital lobe: Controls visual
functions, color, and shape
recognition
Parietal lobes: Helps with written
and spoken language.
Temporal lobes: Mainly involved
in visual memory (i.e., memory
for pictures and faces) and verbal
memory (i.e., memory for words
and names).
Cerebellum: Helps the body
keep it’s balance.
Parts of the nervous system

Spinal cord: part of the
nervous system that runs
from the brain down
through the back and
contains threadlike
nerves that branch out to
every organ and body
part.
Parts of the nervous system

Neuron: A nerve cell
that sends and
receives electrical
signals over long
distances within the
body.
Parts of the nervous system

Peripheral Nervous System (PNS): regulates
key functions of the body including the activity of
the heart muscles, the smooth muscles (e.g., the
muscles of the intestinal tract), and the glands.
Parts of the nervous system

Autonomic System: Deals with the functions
of the body. Specifically, autonomic nerves
are involved with the regulation of the heart
muscle, the tiny muscles lining the walls of
blood vessels, and glands.
Parts of the nervous system

Somatic System: The
portion of the nervous
system that deals
with the control of
voluntary muscle and
relating the organism
with its environment.
How to care for your nervous
system:

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Always wear your helmet
when you ride your
skateboard, bike, etc.
Wear your seatbelt
Get about 8 hours of sleep
every day
Don’t use drugs or alcohol.
Wear appropriate headgear
and safety equipment when
you’re playing a sport.
Symptoms of a concussion
Some symptoms of a concussion are:
 "seeing stars" and feeling dazed, dizzy, or lightheaded
 memory loss, such as trouble remembering things that happened right
before and after the injury
 nausea or vomiting
 blurred vision and sensitivity to light
 slurred speech or saying things that don't make sense
 difficulty concentrating, thinking, or making decisions
 difficulty with coordination or balance (such as being unable to catch a ball
or other easy tasks)
 feeling anxious or irritable for no apparent reason
 What should you do if a friend or teammate has a concussion? Tell
someone quick. Even if the concussion seems mild, the person should rest
for a while.
 If the symptoms are severe (like seizures or being knocked out) or the
person seems to be getting worse, the person may have gotten a
serious head injury. Get medical help right away.
Health triangle
The nervous
system controls
your mind and
emotions
Your brain controls your
personality
Physical
Without your nervous system, your body
can’t function