Middle school level description of the lymphatic system and the organs.

1. The Lymphatic System
Science 7 Hazelbrook Middle School

2. Cornell Notes
 What 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.

3. Cornell Notes
 What 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.

4. Cornell Notes
 What 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.

5. Cornell Notes
 What 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.

6. Cornell Notes
 What 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.

7. Cornell Notes
 What 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.

8. Cornell Notes
 What 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.

9. Summary Statement
 Reflect 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.