2.03 Remember the
structures of the
lymphatic system
2.03 Remember the structures of
the lymphatic system
What are the structures of the
lymphatic system?
2.03 Remember the stuctures of the
lymphatic system
2
Structures of the
lymphatic system
2.03 Remember the stuctures of the
lymphatic system
3
Structures of the
lymphatic system
Lymph fluid
• straw-colored
• Clear
• Contains:
• Water
• Granulocytes
• Lymphocytes
2.03 Remember the stuctures of the
lymphatic system
4
Structures of the lymphatic system
Lymph vessels
• parallel to blood vessels
• transport lymph
• Carries digested food,
oxygen, hormones to cells
• Excretes urea and carbon
dioxide away from the
cells
2.03 Remember the stuctures of the
lymphatic system
5
Structures of the lymphatic system
Lymph vessels parallel to blood vessels
2.03 Remember the stuctures of the
lymphatic system
6
Structures of the lymphatic system
Lymph vessels
• Lacteals
• Specialized
lymph vessels in
the small
intestines, absorb
digested fats and
transport them to
the circulatory
system2.03 Remember the stuctures of the
lymphatic system
7
Structures of the lymphatic system
Lymph vessels
•
Lymphatic ducts
• Large lymph vessels
• Thoracic duct
• Also called the left
lymphatic duct
• receives lymph
from the left side
as pictured
• Right lymphatic duct
• Lymph flows only in one
direction (body organs to
R or L subclavian veins
to superior vena cava of
the stuctures of the
the heart) 2.03 Remember
lymphatic system
8
Structures of the
lymphatic system
Lymph nodes
• tiny, oval-shaped
structures
• range in size from a
pinhead to an almond
Lymph node
• Recognize a foreign substance
and release lymphocytes,
reach the blood and anitbodies
are made to attack the
microorganism
2.03 Remember the stuctures of the
lymphatic system
9
Structures of the
lymphatic system
Lymph nodes
•
Where are lymph nodes located?
•
Why are there so many?
•
If the amount of foreign substance is
too large and cannot be destroyed
then the lymph nodes become
enlarged its known as adenitis
2.03 Remember the stuctures of the
lymphatic system
10
Structures of the
lymphatic system
Tonsils
•
•
3 pairs
masses of lymphatic
tissue
1.
Palatine tonsils
•
sides of throat
2. Adenoids
•
upper throat
3. Lingual tonsils
•
back of tongue
2.03 Remember the stuctures of the
lymphatic system
11
Structures of the
lymphatic system
Say “aahhh”
Why this is helpful?
2.03 Remember the stuctures of the
lymphatic system
12
Structures of the
lymphatic system
Spleen
• Sac-like mass of
lymphatic tissue
• Located in the LUQ
•
•
Forms lymphocytes and
monocytes; blood passing
through is filtered
Destroys old erythrocytes
2.03 Remember the stuctures of the
lymphatic system
13
Structures of the
lymphatic system
Thymus gland
•
•
•
located in the upper,
anterior chest
also an endocrine
gland
Produces Tlymphocytes
2.03 Remember the stuctures of the
lymphatic system
14
Structures of the
lymphatic system
Thymus gland
What is unique
about the thymus
gland?
2.03 Remember the stuctures of the
lymphatic system
15
2.03 Remember the structures of
the lymphatic system
What are the structures of the
lymphatic system?
2.03 Remember the stuctures of the
lymphatic system
16