Micro/Patho Flashcards
1
Q
What does the heavy chain in an AB determine
A
The immunoglobulin isotype
2
Q
When a patient is suffering from anaphylatic shock epinephrine is administered.
How does this work to help the patient
A
- Epipnephrine stimulates the reformation of tight junctions btw endothelial cells
- Preventing permeability and fluid loss from blood
- Diminishes swelling
- Raises BP
- Relaxes bronchial smooth muscles
- Stimulates heart
3
Q
what are some xamples of antihistamines
A
- Diphenhydramine
- Corticosteroids (prednisone)
4
Q
What are some examples of reactions that cellular immunity fights against 6
A
- Delayed hypersensitivity
- Systemic response to viral and microbial infections
- Contact dermatitis
- Granulomatous
- Allograft rejection
- Graft vs host defense
5
Q
MHC I
Found on
Recognized by
Presents
A
- On all nucleated cells
- Not on RBC bc anucleated
- Recognized by CD8 T cells
- Binds and presents peptides derived from cytosolic proteins
6
Q
MHC II
A
- Expressed by professional antigen presenting cells , macrophages, and B cells
- Recognized by CD 4 T cells
- Binds and presents peptides derived from endocytosed proteins
7
Q
A
