The lymphatic system is a vital component of the immune system, composed of lymph nodes, vessels, and organs such as the spleen and thymus. It circulates lymph, a fluid containing white blood cells, to help fight infections and maintain fluid balance in the body. Key functions include nutrient supply, excess fluid drainage, protein transmission, and intestinal fat absorption.

1. By – Shubham maurya
B. Pharm, M. Pharm
@Pharmacy with shubham
*Lymphatic System
(LYMPH NODES, Lymph vessels,
Lymph, Lymphatic organs.

2. Introduction
The lymphatic system forms a closed network
of lymph vessels through which lymph
circulates all over the body. The flow of
lymphatic fluid is unidirectional, from tissue
spaces to the blood.
The lymphatic system is a crucial part of
the body's immune system. It consists of
lymph nodes, lymph vessels, the spleen,
thymus, and tonsils. Its primary function is
to transport lymph, a clear fluid containing
white blood cells, throughout the body to
help fight infections.

3. *Composition of
Lymphatic System
The lymphatic system consists of:
*Lymph, a fluid.
*Lymphatic vessels that transport the lymph.
*Lymph nodes through which lymph passes before
returning to the blood.
*A number of structures and organs containing lymphatic
tissue, e.g., spleen and thymus.
*Red bone marrow, where stem cells develop into various
types of blood cells, including lymphocytes.
*Diffuse lymphoid tissue, e.g., tonsils.

4. *LYMPH NODES
*Small, bean-shaped structures that
filter lymph fluid and trap
bacteria, viruses, and other
harmful substances. They contain
immune cells (lymphocytes) that
help fight infections.

5. *Lymph Vessels
*A network of vessels that
transport lymph fluid
throughout the body. They
work alongside blood vessels
to return excess fluid from
tissues to the bloodstream.

6. *Lymphatic Organs
*These include the spleen,
which filters blood; the
thymus, where T-cells
mature; and the tonsils,
which help fight infections.
These organs play key roles in
immunity and fluid balance.

7. *Lymph
*Lymph is a clear watery fluid. The composition of lymph is
almost similar to the plasma and the interstitial fluid.
Functions of Lymph
*Nutritive: Nutrition and oxy­
gen is supplied to low blood areas.
*Drainage: Maintains constant volume and composition of tissue
fluid by removing excess fluids and metabolites.
*Transmis­
sion of Proteins: Lymph carries proteins to the blood
through tissue spaces.
*Absorption of Fats: Intestinal fats are absorbed through the
lymphatics

8. *Thank You