Structure:
The lymphatic system is formed of the thymus gland, the spleen, the lymph
nodes, and the lymphatic vessels. The lymph, fluid the body collects from
the loose connective tissue around cells and loose connective tissues,
enters the circulation through
the lymph ducts, into the subclavian veins on both sides of the upper thorax.
In humans, other sites of lymphoid tissue are the tonsils, the adenoids,
the ileum, and the appendix.
Function:
The lymphatic system adds fluid into the blood for maintaining the circulation
and fluid balance, absorbing proteins
that leak from the blood capillaries and fats from the digestion
of food, and produces the body's defense to infection. It develops
antibodies, and also stores and releases leucocytes
from the thymus gland and from the spleen.