Download Lesson 5 Immune System 40-1

Lesson 5 Immune System 40-1
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Warm up: describe some of the illnesses you’ve had: the symptoms, and what treatments
you had to take to get well again.
Illness
symptoms
treatment
Disease: any change, other than an ___________________, that disrupts the normal
functions ______________________________________.
Germ theory of disease: Idea that infectious diseases are caused by ________________
_____________, or germs.
Pathogen: A ________________- ____________________ agent.
Vector: Animal that carries _______________________ from _____________________
___________________________________________________________.
Lecture 40-1 Infectious Diseases
Organs of the immune system:
Tonsils and adenoids, thymus, _____________ ____________
appendix, __________ ________________, spleen, Peyer’s
patches, lymphatic ____________________________.
3 causes of disease
Germ theory
1. Agents (___________________________)
2. _____________________________ex: cigarette smoke
3. Inherited genes _________________________________
________________________________________________
L. Pasteur and R. Koch ( ______________)
Germ theory: Infectious diseases are caused by _______________________________________________________.
Koch’s postulates
a) Pathogen will always be found in the ___________,
NOT in the ______________________.
b) It must be isolated and grown as a _________________.
c) If placed in a new host, they will become____________.
d) The pathogen taken from the ____________________
will be _______________________ to the original.
Lyme disease
Isolated in 1975 in ____________, Connecticut.
Symptoms: ____________, joint _________________
The disease is caused by a ______________________,
Vector
Disease pathogens
The disease vector is a _________________________.
Animal that carries ______________________ from
person to person.
Viruses : tiny particles (not ________________) that
invade cells. __________ __________ the cell’s
__________________________.
Bacteria: cause disease by releasing _____________ or
by breaking down _______________________________.
Protists: Spread by ______________or _____________
Causes ______________________
Worms: flatworms and roundworms can be ___________
_______________________________________________
Fungi: Infects ______________, causing athlete’s foot and
___________________________
How disease is spread
Physical contact: touching an infected surface, then
touching your _____________, ______________ or
_____________, or inhaling airborne particles.
Contaminated food and water: salmonella, E _________
Infected animals: _______________________ (vectors)
carry West Nile virus, ____________________ can carry
rabies.
Fighting infectious
Diseases
Antibiotics: medicines that kill ____________________
infections _____________________
Few viral medicines exist.
OTC (over the counter) medicines: relieve the
_________________, not a _______________________
Your immune system becomes ____________________,
and launches an __________________________________
Summary:
Today’s topic was about ___________________________________________________
I already knew that________________________________________________________
I just learned that_________________________________________________________
I’m interested in learning more about__________________________________________