Answer
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Functions of the Tonsils
- the Tonsils are present at the beginnings of the
Digestive & Respiratory tracts to guard against
infections.
- the form antibodies against infective agents
( immunological role ).
so every effort is done to preserve them.
Functions of the Spleen
1- in adults certain blood cells can be formed in the
spleen in case of haemolytic anaemias .
2- in adults, it can concentrate & store the blood cells
& blood platelets.
3- After hemorrhage, the spleen contracts to pour
concentrated blood cells into the circulation.
4- the macrophages in the splenic tissue can filter the
blood from bacteria or any foreign bodies.
5- the macrophages of the spleen can also remove &
phagocytose the old or the destructed red blood
corpuscles.
6- the macrophages of the spleen can store iron.
7- the spleen has a great immunological humoral
functions :
- the B-Lymphocytes of the white pulp of the spleen,
, under the influence of antigenic stimulation &with
the aid of T-Lymphocytes ( helper cells ) & other
cells of the spleen , these B-lymphocytes become
activated to form Plasmablasts.
these plasmablast cells migrate to the red pulps to be
changed into plasma cells.
these plasma cells can produce specific antibodies
directly into the circulating blood ( humoral ).
therefore, the spleen can be considered as the chief
source of humoral antibodies.
so, every effort is done to perserve the spleen.
