Test 1 Flashcards
In order to have a healthy immune system these factors must be in place (7):
- Sleep
- Healthy eating
- Vaccinations
- Good hygiene
- Food safety
- Clean water
- Safe sex
What is “immune response”?
How your body recognizes and defends itself against any foreign debris.
5 cardinal signs of inflammation:
- Pain
- Heat
- Redness
- Swelling
- Loss of function
Prolonged/dramatic responses can have what effect to host?
Can be damaging including inflammation.
What happens when you have a problem with your immune system?
Results in illness.
What is the immune system made up of?
Special cells, proteins, tissues and organs working together.
What are leukocytes?
White cells.
What are the two types of leukocytes?
Phagocytes and lymphocytes.
Where are leukocytes produced/stored?
Spleen, thymus and bone marrow called lymphoid organs.
Clumps of lymphoid tissue though out body are called:
Lymph nodes.
Leukocytes circulate though organs through what?
Lymphatic vessels and blood vessels.
What is the job of phagocytes?
They chew up invading organisms.
What is the job of lymphocytes?
Cells that allow the body to remember previous invaders and help body destroy them.
What are the different types of lymphocytes?
B & T lymphocytes.
What is the job of B cells?
Like military intelligence, they seek out and tag the antigens.
What is the job of T cells?
Like the bodies soldiers, they kill the antigens.
Whats the job of immunization?
It exposes the body to small amounts of an antigen to allow body to produce its own antibodies for future attack.
What is the function of antibodies (2)?
They lock on (tag) to an antigen and deactivate it (they do not destroy them) then notify the T-cells to destroy the tagged antigens.
They also activate a group of proteins called complement.
How if complement activated?
Activated by antibodies.
What is the job of complement?
Assist in killing antigens.
Protections is immunity, what are three types of immunity?
- Innate
- Adaptive
- Passive
What is innate immunity?
Everyone is born with it.
Includes skin, mucous membranes.
First line of defense.