Stem Cells + Immune System Flashcards
What are the main pathogens?
Archaebacteria
Bacteria
Protist
Fungus
Plant
Animal
What is a pathogen?
A pathogen is any organism that can cause disease.
Are microbes bad?
not always, they are only bad if you have a compromised immune system.
How do they continue to live?
They use there host to reproduce, then travel to another host.
How do pathogens spread?
Bodily fluid
Airborne particles
Contact with feces
Surfaces
Skin contact
What does the immune system do? What is it?
It is the body’s response to danger, aka disease and injury.
What is the difference between innate immunity and acquired immunity? Which one is T cells apart of?
Innate is nonspecific and acquired is specific. T cells are apart of acquired immunity.
What is innate immunity?
It involves myeloid leukocytes meaning it eats other cells, also apart of the inflammatory response, uses mast cells. Cytokines signal between the cells.
What are cytokines?
They are messenger cells
What are mast cells?
They release histamines which are a protein.
What are the exterior barrier?
Skin
Mucous membranes
Secretions
What is acquired immmunity?
Antigen-antibody relationship
Vaccinations are created that are specific to anti-gen
And involves lymphocytes
What is the antigen-antibody relationship?
It is the protein on a surface of the cell membrane.
What kind of antigens does each blood type have?
O - zero
A - A-antigen
B - B-antigen
AB - BO+
What kind of antigen does each blood type have?
O = O+ (pitch fork + Y)
A= Defense against B (YY)
B= Defense against A (pitchfork)
AB = A anti-antibodies (—)
What is a lymphocyte?
White blood cells
Where does lymphocytes originate from?
They originate within the bone marrow.
Lymphocytes have a large supply of which cell?
Hematopoietic stem cells
What is Asymmetric cell division?
It is when one cell, the daughter, stays within the bone marrow.
What begin from the bone marrow?
Lymphoid and myeloid lineage begin from here
When differentiation from the lymphoid stem cells into the thymus, what happens to B and T cells?
B cells mature in the bone marrow
And T cells mature in thymus.
What’s a stem cell?
A stem cell is a type of cell that doesn’t know what kind of cell it wants to become,
Where do Mature B and T cells go?
They go to secondary lu
