T celks and cell mediated immunity Flashcards
1
Q
What are Th cells
A
T helper cells
2
Q
What are Tc cells
A
Cytotoxic T cells
3
Q
Cell mediated immunity
A
Th cell have receptors complementary to the specific pathogen
Phagocyte displays antigens from the pathogen on cell surface membrane
Receptors on Th cell is complementary to antigen and so it binds
This stimulates rapid Th cell mitosis :
Phagocytes are stimulated
Stimulates B cell division
Become memory cells
Activite cytotoxic T cells
4
Q
How do Cytotoxic T cells work and purpose
A
Cytotoxic T cells destroy infected cells
Secrete perforin
Creates holes in cell membrane, destroying it
5
Q
Where do T - lymphocytes mature
A
In the Thymus
6
Q
Where are lymphocytes produced
A
Bone marrow
