1. Lymphatic System

2. Lymphatic System Lymph vessels Lymph (The fluid within the vessels)
Lymph Tissue
Lymphatic Organs- Produce immune cells
Lymph nodes
Thymus
Tonsils
Bone Marrow

8. Two Collecting Ducts Right Lymphatic Duct Left Lymphatic Duct
Drains upper right quadrant into the right subclavian vein
Left Lymphatic Duct
Drains rest of body into left subclavian vein

9. Patches of lymphatic tissue containing lymphocytes are located throughout the body
Where there are orifices, there are lymphocytes in the mucous linings
Throughout other parts of the body, there are lymphatic nodules
Such as the Peyer’s Patch in the small intestine

10. Primary Lymphatic Organs
Red Bone Marrow
Thymus
Provide a location for B and T lymphocytes to mature

11. Secondary Lymphatic organs
Tonsils
Lymph nodes
Spleen
Contain mature T and B cells

13. Lymph nodes As lymph flows, it must pass through several lymph nodes
The fluid slows as it flows through these and pathogens, and other foreign material, are removed.
Lymph nodes also serve as a final maturation site for some lymphocytes and monocytes.

14. Lymph nodes