Topic: Immunity
Aim: Describe the structure and role of pathogens in
causing disease.
Do Now: Take out your Immune System reading
notes and your skeletal system picture to finish
labeling.
HW: Castle Learning Skeletal, Muscular and
Immune Systems due Tuesday, March 22nd
Do Now: With your 3:00 partner, identify and describe the function
of structures A, B and C in the diagram.
A – Skeletal muscle
•Attach to bone to aid in
movement
B - Ligament
•Connect bone to bone
C - Tendon
•Connect muscle to bone
Identify the name of organisms that
cause disease.
• PATHOGENS
• Prefix???
–From Greek pathos "disease”
• Suffix???
–From French -génique "producing"
Examples of pathogens???
Schistosoma mansoni is a
major parasitic pathogen
that causes
schistosomiasis.
You can become infected
when your skin comes in
contact with contaminated
freshwater.
Schistosomiasis accounts
for greater than a ¼ of a
million deaths per year.
These not found in the U.S.
Why?
Within days after becoming
infected, they may develop a
rash or itchy skin. Within 12 months of infection,
symptoms may develop
including fever, chills,
cough, and muscle aches.
Symptoms of chronic
schistosomiasis include:
abdominal pain, enlarged
liver, blood in the stool or
blood in the urine, problems
passing urine, and increased
risk of bladder cancer.
1. Which 3 • Integumentary
systems
• Respiratory
provide the
•
Digestive
body with
its first
line of
defense
against
pathogens?
2. Identify • White blood cells
what is
produced
when
foreign
materials
get past
the 1st line
of defense.
3. Identify • Antigen
the protein
on
pathogens
that your
body does
not
recognize.
4. Identify • Antibodies
what
attaches to
the antigen
on the
pathogen.
1. Identify the labeled
structures.
2. Where are antigens
located? On the pathogen
3. Describe the shape of
A
Pathogen an antibody. Y shape
4. Describe the relationship
Antigen
B
between an antigen and an
antibody.
Antibody
C
Shapes match
5. Identify other
substances in the body
have that this same type of
relationship.
Neurotransmitters and
receptors
Hormones and receptors
5. Identify • B-lymphocytes
the type of
white blood
cell that
produces
antibodies.
• Resistance to a sickness
6. Describe (DISEASE)
immunity.
7. Identify • Active immunity
the 2 types • Passive immunity
of
immunity.
8. Identify the
type of
immunity that
occurs when
antibodies are
NOT produced
by the
person’s own
body but given
to the body
from another
source.
• Passive immunity
9. How can
a person
develop
PASSIVE
immunity?
9. How can • New born baby  only
a person
have antibodies from
develop
mother:
PASSIVE
– during pregnancy
immunity?
– through breast milk
• Receiving antibodies
10. Identify
the type of
immunity
developed
when the
body
produces its
own
antibodies.
• Active Immunity
11.
Identify
the 2
ways you
can
develop
ACTIVE
immunity.
• When your body
11.
FIGHTS against any
Identify
specific PATHOGEN
the 2 ways
you can
your have developed
develop
antibodies against
ACTIVE
• By receiving a VACCINE
immunity.
12.
• Small amounts of
Identify
weakened or dead
what makes pathogens.
up a
vaccine.
13. Explain • B cells are called into
action to create
why a
antibodies as is you
vaccine
were fighting a real
causes
illness.
active
immunity.
Memory Cells
• Another type of lymphocyte
• Also produced when pathogens enter the body.
• Remain in the blood ready the defend against
invasion of the same pathogen at another time
Let’s summarize…
1. What is a pathogen?
2. Identify the body’s 1st line of defense
against pathogens.
3. Identify the proteins found on the surface
of pathogens.
4. Identify the proteins produced to help fight
the pathogen.
5. Identify the 2 types of immunity.
6. How can you get passive immunity?
7. How can you get active immunity?
8. Identify the contents of a vaccine?
A
B
C
Which substances may form in the
human body due to invaders entering
the blood?
a. nutrients
b. vaccines
c. antibodies
d. red blood cells
Which phrase does not describe a way
the human body responds to fight
disease?
a. destruction of infectious agents by white
blood cells
b. production of antibodies by white blood
cells
c. increased production of white blood cells
d. production of pathogens by white blood
cells
Which statement does not identify a characteristic
of antibodies?
a. They are produced by the body in response to
the presence of foreign substances.
b. They may be produced in response to an
antigen.
c. They are nonspecific, acting against any
foreign substance in the body.
d. They may be produced by white blood cells.
Which statement best describes an immune
response?
a. It always produces antibiotics.
b. It usually involves the recognition and
destruction of pathogens.
c. It stimulates asexual reproduction and
resistance in pathogens.
d. It releases red blood cells that destroy
parasites.
Part of the body’s first line of
defense against disease-causing
organisms is
a. the immune system
b. the skin
c. antibodies
d. interferon
Molecules that are foreign to your body
are called
a. antibodies
b. white blood cells
c. antigens
d. histamines
A(n) __ is a substance made by an
organism in response to invading
substances and disease-causing
organisms.
a. allergen
b. antibody
c. antigen
d. pathogen
The immune system of humans may
respond to chemicals on the surface of
an invading organism.
1. What are these chemicals on the
surface called?
2. Explain what will happen once these
chemicals enter the body.
Which statement best describes an immune
response?
a. It always produces antibiotics.
b. It usually involves the recognition and
destruction of pathogens.
c. It stimulates asexual reproduction and
resistance in pathogens.
d. It releases red blood cells that destroy
parasites.
Molecules that are foreign to your body
are called
a. antibodies
b. white blood cells
c. antigens
d. histamines
A(n) __ is a substance made by an
organism in response to invading
substances and disease-causing
organisms.
a. allergen
b. antibody
c. antigen
d. pathogen
Resistance to a specific disease
is a(n)
a. antibiotic.
b. immunity.
c. white blood cells.
d. addiction
Once you have had the chicken pox, it is
unlikely that you will ever get the
disease again because your body has
developed a(n)
a. passive immunity.
b. addiction.
c. active immunity.
d. antibiotic.
Immunity that occurs when
a body makes its own
antibodies is called
_________immunity.
a. Passive
b. Temporary
c. Shortened
d. Active
An injection of a weakened
virus that allows one to
develop immunity against a
disease is called a
a. antibody
b. vaccine
c. epidemic
d. pathogen
Which of the following
parts of the body's
defense system seeks
out and destroys
bacteria?
a. mucus
b. white blood cells
c. skin
d. red blood cells
B
C
A
Identify each labeled structure and support
your answer.