GENERAL HISTOLOGY

LYMPHATIC

LYMPHATIC SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does the spleen help the immune system?
A
Macrophages fight pathogens when the blood flows into the spleen
B
Lymph is made here
C
Tiny little soldiers live in the spleen
D
The spleen doesn’t do anything
Explanation: 

Detailed explanation-1: -The spleen also helps get rid of germs. It contains white blood cells called lymphocytes and macrophages. These cells work to attack and destroy germs and remove them from the blood that passes through the spleen. The body also uses the spleen as a place to store blood and iron for future use.

Detailed explanation-2: -Tissue-resident macrophages in the spleen play a major role in the clearance of immunoglobulin G (IgG)–opsonized blood cells, as occurs in immune thrombocytopenia (ITP) and autoimmune hemolytic anemia (AIHA).

Detailed explanation-3: -The spleen filters blood in much the way that the lymph nodes filter lymph. Lymphocytes in the spleen react to pathogens in the blood and attempt to destroy them. Macrophages then engulf the resulting debris, the damaged cells, and the other large particles.

Detailed explanation-4: -The white pulp is structurally similar to a lymph node, contains T-cell and B-cell zones (the latter are also called follicles), and allows generation of antigen-specific immune responses that protect the body against diseases against blood-borne bacterial, viral and fungal infections.

There is 1 question to complete.