Download The immune system

The immune system
1. Is scattered throughout the body and uses
different parts of other systems.
2. Begins with the skin the seal out possible
infections.
3. Then the mucus membranes to flush out
possible infections. (examples are tears in
eyes, nose, saliva in mouth and acids in
stomach)
4. Fights infection and diseases. Infection–
pathogens enter body. Disease—condition that
keeps the body from functioning normally.
5. Pathogens cause disease. Pathogens include
viruses, bacteria, protists and fungi.
6. Diseases are either infectious or noninfectious. Infectious diseases are
transmitted person to person.
Activity:
1. Exchange test tube materials with at least 4
other individuals.
2. After you are finished return to your seat.
3. Remove your dropper when I come to “test”
you.
results
• Clear– no contact
• Cloudy white– in contact,
not infected
• Light pink– have HIV, maybe
5-10 years left
• Bright pink– Has AIDS, 6
months to live
Write in your booklet
1.
How you felt waiting on
the test.
2. What it would really mean
in your life
3. How can it be prevented?
4. Would being infected be a
reason to not
communicate with
someone? Why?
Agenda 3/19
Bell ringer in pink booklet
• Standard: recall major
organs and their function
within their system.
• Objective: students will
describe the effects of the
various diseases.
• Objective: Students will
describe the effects of
infectious diseases and non
infectious diseases.
Instruction
1. Bell ringer
2. Check hw
3. notes using booklet
4. Discussion on immune
system
3/19 Bell ringer
1. Providing movement is a main
function of one of the organ
systems of the body. This system
is the —
A.
B.
C.
D.
muscular system.
skeletal system.
nervous system.
excretory system.
7-3.4
2. Which disease is caused by
fungus?
A.
B.
C.
D.
Athlete’s foot
Hepatitis B
Lung cancer
Strep throat
7-3.4
3. Which disease is caused by
bacteria?
A.
B.
C.
D.
Arthritis
Leukemia
Tuberculosis
Yeast infection
Infectious Diseases
7. These pathogens can come from another person, a
contaminated object, an animal bite, or the
environment.
8. The immune system is responsible for distinguishing
between the different kinds of pathogens and reacting
to each according to its type.
9. Once a pathogen enters has entered the body, it works by damaging
individual cells within the organs or in some cases attacks an entire body
system.
 Examples of infectious diseases include:
10. Colds-- caused by a viral infection located in the respiratory
system. It multiplies and attacks the mucous membranes of
the nose and throat causing the common effects of the cold
(for example, sore throat, runny nose or fever).
 Because the cold is caused by a virus it cannot be treated
with an antibiotic.
11. Flu
 Influenza, commonly known as "the
flu," is a highly contagious viral
infection of the respiratory system.
 Influenza typically causes fever,
muscle aches, and a more severe
cough than the common cold and
usually last longer.
 12. Athlete’s Foot --A common
fungal infection of the skin of
the feet.
 The fungus may be contracted
from public environments and
then grows in the warm and
moist environment usually
between the toes, and can be
difficult to cure.
 13.
AIDS
 Acquired immunodeficiency
syndrome (AIDS) is caused
by the human
immunodeficiency virus
(HIV).
 This virus attacks the cells in
the immune system making
the organism unable to fight
off other pathogens that may
attack the body.
 14. Strep throat-- a contagious
disease caused by bacterial
infection.
 Strep throat symptoms include
fever, pain, redness, and
swelling of the throat and
tonsils.
 Strep throat may produce mild
or severe symptoms.
15. Noninfectious diseases are diseases that are not caused
by pathogens in the body.
They are not spread from organism to organism.
These diseases are caused by malfunctions in body systems
that are either inherited or caused by environmental
factors.
16. Examples of noninfectious diseases include::
 Diabetes
A. A disease that results in the glucose (sugar) level
of the blood being higher than the normal
range.
B. It is caused by a person’s inability to either
produce or use properly a natural chemical
produced in the body called insulin.
C. The higher level of blood sugar causes many
disorders of the body, for example an increase in
problems with circulation of blood.
D. Diabetes can lead to kidney disease and heart
disease or cause vision problems.
17. Parkinson’s Disease
A. A disease of the
nervous system that
occurs when certain
nerve cells in the
brain stop
functioning
properly, affecting
the muscular
system.
B. The major
symptoms are
severe shaking
(tremors) and
disabilities involving
movement.
C. At present, there is
no cure for
Parkinson's disease.
18. Skin Cancer
A. A disease in which cancer cells
found in the outer layers of the
skin become damaged.
B. Factors that can lead to skin
cancer are damaging
ultraviolet rays (UV) from the
Sun or tanning beds and
heredity.
19. Asthma
A. Asthma is a disease that affects
the lungs and the airways that
deliver air to the lungs.
B. It causes periodic attacks of
wheezing and difficult
breathing.
C. An asthma attack occurs when
the airways become inflamed in
response to a stimulus, such as
dust, mold, pets, exercise, or
cold weather.
D. However, some attacks start for
no apparent reason