Structure

The lymphatic system can be divided into two anatomical subsets:

#1 Vessels

#2 Lymphoreticular System

Vessels that carry lymph around the body
Consisting of the lymphoid tissues

Primary Lymphoid Tissue

Secondary Lymphoid Tissue

Appendix, bone marrow, bursa of Fabricius, foetal liver, ileal Peyer's patch and thymus. Spleen, lymph nodes, regional lymphoid tissue and tonsils.

Functions

The lymphatic system has three functions:

  1. Immune defence
  2. Removal of interstitial fluid from tissue
  3. Transport of fat

Immune defence

This is a broad topic area.

Immune functions are covered broadly under the primary and secondary lymphoid tissues of the lymphoreticular system with further information under the immunology section.

Removal of interstitial fluid

Transport of fat