8.1 Organs of Immune System Flashcards
What are the Primary lymphoid organs?
Bone marrow and Thymus
What are the secondary lymphoid organs ?
Spleen
Lymph nodes
MALT (Mucosal Associated Lymphoid Tissue)
CALT (Cutaneous Associated Lymphoid Tissue)
Filters blood and places where contact between T cells, antigens, and B cells occur
a. Primary lymphoid organ
b. Secondary lymphoid organ
b
Produces hematopoietic stem cells and lymphocytes
a. Primary lymphoid organ
b. Secondary lymphoid organ
a
Recognition and activation of antigen
a. Primary lymphoid organ
b. Secondary lymphoid organ
b
Maturation of B cells and NK cells happens in?
Bone marrow
Maturation of T cells happens in?
Thymus
In thymus:
Outer layer where Immature T cells stay
a. Cortex
b. Medulla
a
In thymus:
Middle layer where mature T cells Stay
a. Cortex
b. Medulla
b
Part of the thymus is a histologic marker or feature that can release cytokines which targets dendritic cell activity
Hassall’s Corpuscles / Thymic corpuscles
Lymph node:
Outer part where you can see primary and secondary follicles
a. Cortex
b. Paracortex
c. Medulla
a
In cortex of Lymph node:
What follicles has a presence of germinal center of fleeing which has a pale portion
Secondary follicles
Lymph node:
Made up of T cells
a. Cortex
b. Paracortex
c. Medulla
b
Lymph node:
Inner, In the cord; you can find the plasma cells
a. Cortex
b. Paracortex
c. Medulla
c
Spleen
Grave yard of RBC
a. Red pulp
b. White pulp
a
