Lymphatic
System
Lymphatic System
• The lymphatic system is part of the
immune system and helps destroy
microorganisms that enter the
body....
FUNCTIONS of the Lymphatic System
• It absorbs some of the tissue fluid that collects around
cells.
• It absorbs fats from the digestive system and transports
them to the circulatory system.
FUNCTIONS of the Lymphatic Syst...
• It filters dead cells, viruses, bacteria, and other unneeded
particles from tissue fluid.
• After filtering, it returns the...
• It helps fight off illnesses and infections.
• The lymphatic system includes structures where your
body’s white blood cell...
PARTS of the Lymphatic System
• The lymphatic system is a
network of vessels and organs
that runs throughout your
body.
PARTS of the Lymphatic System
• Water, white blood cells,
and dissolved materials
such as salts and glucose
leak out of ca...
PARTS of the Lymphatic System
• The cells absorb the
materials they need from
tissue fluid and release
wastes into it.
Lymph
PARTS of the Lymphatic System
• About 90 % of the tissue
fluid is reabsorbed by the
capillaries.
• About 10 % of the tissue...
PARTS of the Lymphatic System
• The network of lymph
vessels looks like the
network of blood vessels
in the circulatory sy...
PARTS of the Lymphatic System
• The network of lymph
vessels looks like the
network of blood vessels
in the circulatory sy...
PARTS of the Lymphatic System
• Lymph is pushed through
the lymph vessels by
contractions of the
muscles in your body.
• T...
PARTS of the Lymphatic System
• Lymph vessels include
clusters of small, spongy
structures called lymph
nodes that filter p...
PARTS of the Lymphatic System
Lymph Nodes
PARTS of the Lymphatic System
• A lymph node traps and
removes bacteria, viruses, fungi,
and pieces of dead cells from
the...
PARTS of the Lymphatic System
• Lymph nodes also store white
blood cells.
• These white blood cells attack
and destroy the...
PARTS of the Lymphatic System
• When you have an infection, your body produces more
white blood cells that fight the infect...
PARTS of the Lymphatic System
Lymph Nodes
PARTS of the Lymphatic System
Lymph Nodes
PARTS of the Lymphatic System
Lymph Nodes
PARTS of the Lymphatic System
• Some white blood cells are
lymphocytes.
• Lymphocytes destroy pathogens,
which are microor...
PARTS of the Lymphatic System
Lymphocytes
• Lymphocytes
include B cells
and T cells.
• B cells mature in
bone marrow.
• T ...
PARTS of the Lymphatic System
Lymphocytes
• The thymus is the organ of the lymphatic system in which T
cells complete thei...
PARTS of the Lymphatic System
Lymphocytes
• T cells in the thymus develop the ability to recognize and
destroy body cells ...
PARTS of the Lymphatic System
• The spleen is an organ of the lymphatic system that
recycles worn-out red blood cells and ...
PARTS of the Lymphatic System
• The spleen also stores blood and platelets.
• If a person is injured and loses a lot of bl...
PARTS of the Lymphatic System
• Tonsils are clusters of lymph
tissue on the sides of your throat.
• They help protect your...
PARTS of the Lymphatic System
• Tonsils are clusters of lymph
tissue on the sides of your throat.
• They help protect your...
PARTS of the Lymphatic System
Tonsils
Lymph Diseases and Disorders
• Damage to the lymphatic system from injury or surgery
can keep tissue fluid from draining in...
Lymph Diseases and Disorders
• If the cells of your tonsils become infected, your tonsils
will swell. This condition is to...
Lymph Diseases and Disorders
Lymph Diseases and Disorders
• The uncontrolled production of white blood cells is a
type of cancer called lymphoma.
• Can...
Lymphatic System and Homeostasis
• The lymphatic system helps your body maintain
homeostasis by keeping tissue fluids from ...
Lymphatic System
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Lymphatic System

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Lymphatic System

  1. 1. Lymphatic System
  2. 2. Lymphatic System • The lymphatic system is part of the immune system and helps destroy microorganisms that enter the body. • Your lymphatic system works closely with your circulatory system. Both systems move liquids through the body, and both contain white blood cells.
  3. 3. FUNCTIONS of the Lymphatic System • It absorbs some of the tissue fluid that collects around cells.
  4. 4. • It absorbs fats from the digestive system and transports them to the circulatory system. FUNCTIONS of the Lymphatic System
  5. 5. • It filters dead cells, viruses, bacteria, and other unneeded particles from tissue fluid. • After filtering, it returns the tissue fluid to the circulatory system. FUNCTIONS of the Lymphatic System
  6. 6. • It helps fight off illnesses and infections. • The lymphatic system includes structures where your body’s white blood cells develop. FUNCTIONS of the Lymphatic System
  7. 7. PARTS of the Lymphatic System • The lymphatic system is a network of vessels and organs that runs throughout your body.
  8. 8. PARTS of the Lymphatic System • Water, white blood cells, and dissolved materials such as salts and glucose leak out of capillary walls. • They move into the space that surrounds tissue cells. This fluid is called tissue fluid. Lymph
  9. 9. PARTS of the Lymphatic System • The cells absorb the materials they need from tissue fluid and release wastes into it. Lymph
  10. 10. PARTS of the Lymphatic System • About 90 % of the tissue fluid is reabsorbed by the capillaries. • About 10 % of the tissue fluid is absorbed by the lymph vessels and is called lymph. Lymph
  11. 11. PARTS of the Lymphatic System • The network of lymph vessels looks like the network of blood vessels in the circulatory system. • Lymph vessels absorb and transport lymph. Lymph Vessels
  12. 12. PARTS of the Lymphatic System • The network of lymph vessels looks like the network of blood vessels in the circulatory system. • Lymph vessels absorb and transport lymph. Lymph Vessels
  13. 13. PARTS of the Lymphatic System • Lymph is pushed through the lymph vessels by contractions of the muscles in your body. • The heart does not pump lymph through the body. Lymph Vessels
  14. 14. PARTS of the Lymphatic System • Lymph vessels include clusters of small, spongy structures called lymph nodes that filter particles from lymph. Lymph Nodes
  15. 15. PARTS of the Lymphatic System Lymph Nodes
  16. 16. PARTS of the Lymphatic System • A lymph node traps and removes bacteria, viruses, fungi, and pieces of dead cells from the lymph as it flows through a lymph node. Lymph Nodes
  17. 17. PARTS of the Lymphatic System • Lymph nodes also store white blood cells. • These white blood cells attack and destroy the trapped particles. Lymph Nodes
  18. 18. PARTS of the Lymphatic System • When you have an infection, your body produces more white blood cells that fight the infection. • Many of these white blood cells gather in your lymph nodes. • This causes the lymph nodes to swell. • The swelling goes away when the infection is gone. Lymph Nodes
  19. 19. PARTS of the Lymphatic System Lymph Nodes
  20. 20. PARTS of the Lymphatic System Lymph Nodes
  21. 21. PARTS of the Lymphatic System Lymph Nodes
  22. 22. PARTS of the Lymphatic System • Some white blood cells are lymphocytes. • Lymphocytes destroy pathogens, which are microorganisms such as viruses and bacteria that cause infection. Lymphocytes
  23. 23. PARTS of the Lymphatic System Lymphocytes • Lymphocytes include B cells and T cells. • B cells mature in bone marrow. • T cells mature in thymus gland.
  24. 24. PARTS of the Lymphatic System Lymphocytes • The thymus is the organ of the lymphatic system in which T cells complete their development. • Immature T cells move from the bone marrow to the thymus.
  25. 25. PARTS of the Lymphatic System Lymphocytes • T cells in the thymus develop the ability to recognize and destroy body cells that have been infected by microorganisms. • Mature B cells and T cells move into the lymph and blood where they help fight infection.
  26. 26. PARTS of the Lymphatic System • The spleen is an organ of the lymphatic system that recycles worn-out red blood cells and produces and stores lymphocytes. Spleen
  27. 27. PARTS of the Lymphatic System • The spleen also stores blood and platelets. • If a person is injured and loses a lot of blood, the spleen can release stored blood and platelets into the circulatory system. Spleen
  28. 28. PARTS of the Lymphatic System • Tonsils are clusters of lymph tissue on the sides of your throat. • They help protect your body from infection. Tonsils
  29. 29. PARTS of the Lymphatic System • Tonsils are clusters of lymph tissue on the sides of your throat. • They help protect your body from infection, trapping & destroying bacteria and other pathogens that enter your nose and mouth. • However, your body can function without tonsils. Tonsils
  30. 30. PARTS of the Lymphatic System Tonsils
  31. 31. Lymph Diseases and Disorders • Damage to the lymphatic system from injury or surgery can keep tissue fluid from draining into lymph vessels. • Tissue fluid can build up around cells and cause swelling. • Lack of activity can also cause swelling. • When the muscles do not push lymph through the lymph vessels, lymph can build up.
  32. 32. Lymph Diseases and Disorders • If the cells of your tonsils become infected, your tonsils will swell. This condition is tonsillitis.
  33. 33. Lymph Diseases and Disorders
  34. 34. Lymph Diseases and Disorders • The uncontrolled production of white blood cells is a type of cancer called lymphoma. • Cancer of the lymph nodes is a related disease called Hodgkin’s lymphoma.
  35. 35. Lymphatic System and Homeostasis • The lymphatic system helps your body maintain homeostasis by keeping tissue fluids from building up around cells. • It supports your circulatory system by cleaning fluids and replacing them in the bloodstream. • It also helps you stay healthy by fighting infection.

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