Download Protecting Yourself from Infectious Disease

Schedule - November 12, 2007
1. Bell Ringer:
 Take out study guide and review
QUIETLY with one other person
2. Announcements
 Assignments
3. Advertisements
4. Discussion
5. Wrap – up
Protecting Yourself from
Infectious Disease
May 11, 2017
How Does Your Body Fight Off
Disease?
 Physical Barriers
 Inflammatory Response
 Immune System
Physical Barriers
 Skin
 Chemicals on your skin help kill pathogens
 Example: Sweat or Oil
 Repairs itself to avoid pathogens
 Mucous Membranes
 Soft tissues that line your:
 Nose, Mouth, Throat, Digestive Tract, Urethra,
and Vagina
 Traps pathogens in the slimy mucous
 Then gets sent to your stomach where it is
destroyed
Physical Barriers
 Chemicals
 Many of the chemicals your body makes
destroy pathogens




Sweat
Oil
Stomach Acid
Tears
Inflammatory Response
 Inflammation: a reaction to injury or
infection that is characterized by:
 Pain
 Swelling
 Redness
Inflammatory Response
 Your body responds with
inflammation when the protective
physical barriers are broken and an
infection occurs.
What is inflammation?
 A small blood vessels expand to bring
more blood to the injured area.
 Pus: dead and injured body cells that
were fighting off bacteria
 Your body is attacking pathogens
Immune System
 The immune system is made up of
certain types of blood cells and
certain proteins called ANTIBODIES
Lymphatic System
 A network of vessels that carry a
clear fluid called lymph throughout
the body.
 Picks up fluid all over the body
 Sweeps up bacteria and/or viruses
and carries them to the lymph nodes.
Lymph Nodes
 Filled with White blood cells that scan
the lymph for pathogens.
 White Blood Cells: cells in the blood
whose primary job is to defend
against disease.
Immune System
 Takes time to fight off disease
 Typically attacks a specific pathogen.
 Skin, Mucous, Inflammation fights off
any pathogen.
What you can do to Stay Well
1. Protect yourself: Keeping your body
healthy.
2. Eat a healthy balanced diet: A lack of
certain nutrients in your diet can
weaken your immune system
3. Drink Water: Drink 8-10 glasses of
water a day to keep your immune
system working effectively
What you can do to stay healthy?
4. Reduce your stress level: it will leave you
vulnerable to illness
5. Exercise Regularly: Get a least 60 minutes
of activity daily.
6. Get regular medical check-ups: Seeing
your doctor or dentist regularly can
prevent infection
7. Try to avoid close contact with sick people:
Wash your hands, do not share personal
items
8. Get enough sleep: 8 hours a day.
Vaccination – pg. 325
 Vaccines: are substances usually
prepared from killed or weakened
pathogens or from genetic material
and that is introduced to the body to
produce immunity.
 Boosters: extra doses of the vaccines
to maintain production
What to do when you are sick?
 Symptoms: the changes that you
notice in your body or mind that are
caused by disease or disorder.
 Know the symptoms
5 signs that you need to seek
Medical Care
1. You have difficulty breathing
2. You have severe pain somehwere
3. Your temperature is 101 degrees or
more and lasts for more than 2 days
4. You have a cut that does not heal
properly
5. Mucous from your nose, throat, or
lungs is thick and yellowish green.
How to prevent the spread of
disease
1.
2.
3.
4.
5.
Get Vaccinations
Keep Clean – Hygiene
Do not share personal items
Cover your mouth
Be on guard outdoors