Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
what are the main sources of pathogens?
|
soil, contaminated waterand infected animals including other people
|
name 3
|
|
|
what are the four (4) main ways pathogens can transmitted to a hoast from reservoirs
|
*direct contact,
*by an object, * through the air, *or by a vector |
|
|
|
what is a vector?
|
an intermediate organism.
|
|
|
|
what is the only way the common cold, influenza and STD's can be spread?
|
direct contact
|
|
|
|
what can a pathogen survive on?
|
*living organism
* inanimate object ( like a telephone) |
2 things
|
|
|
why do people get more ill in the winter then in the summer?
|
because you remain in closed and closer contact with other people.
|
|
|
|
what are some examples of behavoirs that weaken your immune system?
|
* lack of sleep
* not eating enough * not eating the right things *drugs and alcohol. |
name 3
|
|
|
are all diseases caused by pathogens?
|
no, some are inherited.
|
|
|
|
can animals be carriers of pathogens?
|
yes.
|
|
|
|
diseases transmitted by vectors are more comonly spread by what?
|
* insects
* anthropodes. |
name 2
|
|
|
what defends your body from disease?
|
your immune system.
|
|
|
|
what are antibiotics?
|
a substance producedby a microorganism that, in small amounts, will kill or inhibit the growth or reproduction of other microorganisms especially bacteria.
|
|
|
|
what do antibiotics not have an effect on or "work on"?
|
viruses
|
|
|
|
inflamation
|
if bateria or other pathogens enter and damage body tissues.
|
|
|
|
how is inflamation charactorized
|
*redness
*swelling *pain *heat |
|
|
|
can phagocytes alone distroy viruses?
|
NO
|
|
|
|
what is the interfereons job?
|
protiens that protect the cells from viruses.
|
look at the word... it contains the word "interfere"
|
|
|
what are the 2 jobs of the lymphatic system?
|
* helps defend the body against disease
*maintains homeostasis by keeping body fluids at a constant level |
|
|
|
which direction does lymph travel?
|
toward
|
toward or away from the heart?
|
|
|
what type of white blood cell defends the body against foreign substances?
|
lymphocytes
|
|
|
|
what are the large clusters of lymph tissue located at the back of the mouth cavity and back of the throat called?
|
tonsils
|
|
|
|
what is the job of the tonsils
|
provide protection against bacteria and other pathogens that enter through the nose and throat.
|
|
|
|
what is the SPLEENS job?
|
*stores certain lymphocytes
* fliters out and destroys bacteria and worn out red blood cells *acts as a blood reservoir. |
3 things
|
|
|
what does the SLEEP not filter?
|
lymph
|
|
|
|
what are the symptoms of an allergic reaction?
|
*sneezing
*increased mucus ( snot) production in the nasal passages (sinus) * redness. |
3 things
|
|
|
what is autoimmune disorder?
|
*when the body thinks its own tissue is foriegn
*t cells can attach transplanted tissue |
|
