The Lymphatic System

Science 7 Hazelbrook Middle School

Cornell NotesWhat is

the primary function of the Lymphatic System?

The primary function of the lymphatic system is to transport lymph, remove excess fluid and waste, and fight pathogens.

Think of this system as a highway or drainage system.

Lymphaticus means

connected to water.

Cornell NotesWhat are

the organs of the Lymphatic System?

1. Lymph Nodes: oval shaped organ

Particles are removed from lymph here.

Lymph nodes are small structures that work as filters for harmful substances.

Cornell NotesWhat are

the parts of the Lymphatic System and what do they do?

2. THYMUS

Releases WBC's to be sent around lymph system

A specialized organ of the immune system too.

Cornell NotesWhat are

the parts of the Lymphatic System and what do they do?

3. Spleen

Filters blood, recycles RedBloodCells and releases WBS’s

Helps fight certain bacteria that cause pneumonia and meningitis.

Cornell NotesWhat are

the parts of the Lymphatic System and what do they do?

4. Tonsils

WBC’s in tonsils fight infection.

First line of defense against ingested or inhaled pathogens.

Cornell NotesWhat are

the parts of the Lymphatic System and what do they do?

5. Lymph

Clear, colorless fluid containing white blood cells.

Lymph is absorbed into lymph vessels.

Cornell NotesWhat are

the parts of the Lymphatic System and what do they do?

6. Lymph Vessels

Tubes that collect lymph.

Lymph is absorbed into lymph vessels.

Summary StatementReflect on what you’ve learned about the

lymphatic system.

Create a summary statement, in your own words, to capture the key ideas and organs of this system.