Functions of lymphoid organs Flashcards
What are B lymphocytes involved in?
Production of antibodies
What are T lymphocytes involved in?
Production of effector T cells
What does humoral immunity involve?
aka antibody-mediated immunity. Involves helper T cell and B cells
What does cellular immunity involve?
involves phagocytes, cytotoxic T cells, cytokines and chemokines
Where does the production of T/B lymphocytes take place?
The bone marrow
What happens during the maturation of T/B lymphocytes?
Acquirement of specific features or structures that enable them to recognise and interact with the pathogens.
Develop B and T cell receptors.
What happens in the activation of lymphocytes?
Reaction of lymphocytes with the pathogens to induce an immune response that is specific to that pathogen
What is the role of the lymphatic system?
transport of white blood cells
drainage of tissue
absorption and transport of fatty acids and fats
immunity
What are the different parts of lymphatic system?
-lymphatic vessels
-primary lymphatic organs (bone marrow and thymus)
-secondary lymphatic organs (lymph nodes,spleen,tonsil)
What happens in primary lymphoid organs?
Places where blood cells are produced and receive their ‘early training’
(acquire ability to interact with antigens)
Formation of blood cells in the bone marrow?
Hematopoiesis
Where is thymus located?
gland located below the larynx
what happens in thymus?
T cells are educated
what is cortex of thymus and what is in it?
outer region and has mature t lymphocytes
what is medulla of thymus and what is in it?
inner region and has immature T lymphocytes and macrophages
