Download Toxin page 629 Poison like substance. Makes healthy cells sick and

Toxin page 629
Poison like substance. Makes healthy cells
sick and interferes with their normal
function
Communicable page 628
Can be spread from person to person
Vector page 630
Something that brings the disease to you but
will not get it .
Mosquitos, ticks, fly’s, birds, mice
Pathogen page 628
Another word for germ,
Virus, bacteria, fungus, rickestasis,
protozoans
Virus vs Bacteria page 629
V- chunk of DNA that needs a host. No
known good ones, is specific to area that it
can infect.
Direct Contact page 630
Indirect Contact page 630
B- living microorganism. Needs no host. Can
effect many areas of body, there are good
ones that we need to have
Exchange of blood or other body fluids
Kissing, biting, sexual contact, touching,
puncture wounds, contact with infected
animals, childbirth
Touching contaminated objects like phones,
keyboards, door handles,
Vectors
Contaminated food or water
Respiratory tract page 633
Lungs, breathing passageways, nose, throat
Immune system page 639
System of organs, glands and cells that fight
disease
Physical barriers page 638
Skin, hair, ear wax, mucus all make barriers
to stop germs, cillia
Chemical Barriers page 638-639
Salt in tears, acid in stomach, salt in sweat,
enzymes in salt and sweat all stop and
destroy germs.
Active immunity page 641
On going. You are continuously building
your immune system by vaccines, natural
exposure to germs, rest, good food, plenty
of water to drink, excercise
Passive immunity page 642
Passed from usually mother to child. Short
lived. Only a few weeks or months. The
antibodies that mom’s body have are
present in new born baby’s blood.
Emerging infections page 645
New to the area.
Epidemic page 648
Lots of people have this illness in one area.
Pandemic page 649
Lots of people have this illness worldwide.
Jaundice page 635
Yellowing of the skin and eyes- due to
toxic build up in blood.
Cirrhosis page 635
The liver can not filter the blood . It has
become hard rather than spongey like
material due to scar tissue.
Inflammatory response page 639
Reaction of tissue by damage to them.
Usually pain, swelling and perhaps fever
Phagocytes page 640
White blood cells that attack invading
pathogens and destroy them with special
chemicals. puss may build up at site of
infection.
Antigens page 640
The are found on surface or in toxins of
pathogens, they trigger an immune
response
Lymphocyte page 640
Antibody page 641
Vaccine page 641
Special kind of white blood cell . There
are 2 types of this cell
T cells and B cells.
Helper T – trigger production of B cells
and Killer T cells
Killer T- attack and destroy infected body
cells—THEY DO NOT ATTACK THE
GERMS
Suppressor T- Turn on immune response
when the danger of germs has passed
B cells- produce antibodies( these fight
against specific anitgens) They destroy
the germs, block viruses from entering
body cells, and attach themselves to
antigens –thus marking them for
destruction.
Good thing body makes. B cells make
them. They are specific to each kind of
antigen that germs make. They can
destroy antigens and germs.
Dead or weakened pathogens are
introduced to body to create an immune
response.