Spleen Flashcards
Secondary immune organ located in LUQ of abdomen
Spleen
Secondary immune organ located anterior to the left kidney
Spleen
Secondary immune organ protected by 9th-11th ribs
Spleen
Structure located in red pulp of spleen with long vascular channels and fenestrated “barrel hoop” basement membrane?
Sinusoids
Cells found in the periarteriolar lymphoid sheath (PALS) within the white pulp of spleen
T cells
Cells found in follicles within the white pulp of spleen
B cells
Zone located between the red pulp and white pulp of spleen
Marginal zone
Cells found in the marginal zone
Macrophages and specialized B cells
Area of spleen where APC’s capture blood-borne antigens for recognition by lymphocytes
Marginal zone
Macrophages found nearby in spleen remove…
encapsulated bacteria
Patients undergoing splenectomy should…
be vaccinated against encapsulated organisms (pneumococcal, Hib, meningococcal)
Cells found in the white pulp of the spleen
WBCs
Examples of splenic dysfunction include…
postsplenectomy and sickle cell disease
Splenic dysfunction leads to…
(1) decreased IgM, (2) decreased complement activation, (3) decreased C3b, (4) increased susceptibility to encapsulated organisms