LYMPHATIC SYSTEM

• System of Tissue and Vessels
• Scattered throughout the Body
•  Service almost all Region
• Supports the circulating, GI, and the Immune System

Functions of The Lymphatic System

• Fluid Balance
• Protection from Infection
• Absorption of Fat (Lacteal absorb fat)

Lymphatic Circulation

• One-Way System
• Begins in Tissues
• Ends in Bloodstream

Lymphatic Capillaries

• More Permeable than Blood Capillaries
• Lacteal Absorb Digested Fats
• Overlapping Cells form One-Way Vavles(Prevents Backflow)

Lymphatic Vessels

(Nodes)

Small Masses of Lyphatic Tissue that Filters the Lymph

Cisterna Chyli

• Enlarged Portion of Thoracic Duct
• Temporary Storage Pouch

Chlye

• Milky Fluid that Drains form Intestinal Lacteal
• Formed by Combination of Fat

Movement of Lymph

• Segments of Vessels Located Btw the Valves contract rhythmically
• Skeletal Mucles Compress Vessels
• More Fluid More Concentration

Lymphoid Tissue

• Distributed Throughout the Body
• Makes up Specialized Organs Of Lymphatic System

Lymph Nodes

• Filter Lymph Once Drained from Tissues

Mesenteric Nodes

Inguinal Nodes

Spleen

Functions

• Cleanses Blood
• Destroys old Red Blood Cells
• Produces Red Blood Cells Before Birth 
• Reservoir for Blood

Thymus

• Plays Key Role in Early Immune System Development
• Produces Thymosin
• DEvelops T Lymphocyte Cells (Key in Immune)
• Promotes Lymphocytes Growth
• Promotes Lymphoid Tissue Activity 

Tonsils

Remove Contaminants and Trap Pathogens

Pharyngeal

Tonsils

(Adenoids)

Lymphangitis

Inflammation of Lympathic Vessels

Lymphadenitis

Inflammation of Lypth Nodes

Lymphedema

Increases in Swelling due to increase of fluid

Infection

Lymphadenopathy

Lymphoma

Hodgkin Disease

• Chronic Malignant
• Disease of Lymphoid Tissue
• Reed Sternberg Cells

Non-Hogkin Lymphoma

• Enlargment of Lymph Nodes
• Especially inCervical
• Spreads Rapidly