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Document Title (Editable via ‘Slide Master’) | Page 1
Lymphatic System
Document Title (Editable via ‘Slide Master’) | Page 2
“The lymphatic system drains fluid
from our tissue spaces”
Herlihy, ...
Document Title (Editable via ‘Slide Master’) | Page 3
The lymphatic
system contains
lymph, the lymphatic
vessels, the
lymp...
Document Title (Editable via ‘Slide Master’) | Page 4
How stuff works
Document Title (Editable via ‘Slide Master’) | Page 5
The Lymphatic System has three main
functions …
The Lymphatic System...
Document Title (Editable via ‘Slide Master’) | Page 6
Lymphatic System
A pathway for the
drainage of tissue
fluid.
Include...
Document Title (Editable via ‘Slide Master’) | Page 7
All About Lymph …
Lymph is a clear fluid that resembles plasma
Lymph...
Document Title (Editable via ‘Slide Master’) | Page 8
Where does lymph come from?
Lymph is formed
from the plasma
during c...
Document Title (Editable via ‘Slide Master’) | Page 9
Where does it go to?
Lymph leaves the
tissue space
through the
lymph...
Document Title (Editable via ‘Slide Master’) | Page 10
Fluid and dissolved substances are
continuously filtered out of the...
Document Title (Editable via ‘Slide Master’) | Page 11
What about the other 10% of fluid?
The 10% of fluid that doesn’t re...
Document Title (Editable via ‘Slide Master’) | Page 12
Lymph Nodes
Small pea-shaped
patches of
lymphatic tissue
that are
s...
Document Title (Editable via ‘Slide Master’) | Page 13
Lymph Nodes
Made of specialized lymphoid
tissue. Functions include:...
Document Title (Editable via ‘Slide Master’) | Page 14
Some of the larger clusters are:
• Cervical lymph nodes
• Axillary ...
Document Title (Editable via ‘Slide Master’) | Page 15
How stuff works
Document Title (Editable via ‘Slide Master’) | Page 16
Lymph Node Structure
The walls of a lymph
node are made from a
sing...
Document Title (Editable via ‘Slide Master’) | Page 17
medicine.ucsd.ed/clinicalmed/head.html
Document Title (Editable via ‘Slide Master’) | Page 18
Axillary nodes
Document Title (Editable via ‘Slide Master’) | Page 19
The LymphaticVessels
The lymphatic vessels
include the lymphatic
ca...
Document Title (Editable via ‘Slide Master’) | Page 20
The distribution of lymphatic vessels is
similar to that of the vei...
Document Title (Editable via ‘Slide Master’) | Page 21
When the lymph is absorbed by the
lymphatic capillaries it flows to...
Document Title (Editable via ‘Slide Master’) | Page 22
The lymph from the right arm and right side of
the head and thorax ...
Document Title (Editable via ‘Slide Master’) | Page 23
How stuff works
Document Title (Editable via ‘Slide Master’) | Page 24
Document Title (Editable via ‘Slide Master’) | Page 25
Both ducts enter into the subclavian
veins
The right lymphatic duct...
Document Title (Editable via ‘Slide Master’) | Page 26
Document Title (Editable via ‘Slide Master’) | Page 27
medicine.ucsd.ed/clinicalmed/head.html
Document Title (Editable via ‘Slide Master’) | Page 28
www.bt.cdc.gov/...trainingmodule/3/03.asp
Swollen axillary lymph no...
Document Title (Editable via ‘Slide Master’) | Page 29
How lymph moves through the
lymphatic vessels
Blood is pumped aroun...
Document Title (Editable via ‘Slide Master’) | Page 30
Lymph moves in response to the following
…
• The milking action of ...
Document Title (Editable via ‘Slide Master’) | Page 31
Lymphoedma
• REF: thenakedscientists.com
• “How the Lymphatic syste...
Document Title (Editable via ‘Slide Master’) | Page 32
The Lymphoid Organs
• Lymph Nodes
• The Tonsils
• Thymus
Gland
• Th...
Document Title (Editable via ‘Slide Master’) | Page 33
LymphoidTissue
Tonsils: Mass of lymphoid tissue
that filters tissue...
Document Title (Editable via ‘Slide Master’) | Page 34
The Tonsils …
The Tonsils are partially encapsulated
lymph nodes in...
Document Title (Editable via ‘Slide Master’) | Page 35
There are three sets of tonsils …
• The PalatineTonsils
• The Phary...
Document Title (Editable via ‘Slide Master’) | Page 36
www.dentsl.mu.edu/...oraltonsil/oraltonsil.htm
Oral Tonsil
Document Title (Editable via ‘Slide Master’) | Page 37
TheThymus Gland
• Located in the upper thorax behind the sternum
an...
Document Title (Editable via ‘Slide Master’) | Page 38
TheThymus Gland … cont.
The Thymus gland secretes hormones called
T...
Document Title (Editable via ‘Slide Master’) | Page 39
www.dentsl.mu.edu/...oraltonsil/oraltonsil.htm
Thymus Gland
Document Title (Editable via ‘Slide Master’) | Page 40
The Spleen
• The Largest lymphoid organ in the body
• Located in th...
Document Title (Editable via ‘Slide Master’) | Page 41
The Spleen … cont
• The Spleen filters blood rather than
lymph
• Th...
Document Title (Editable via ‘Slide Master’) | Page 42
White Pulp
• Consists of lymphoid tissue
• Lymphocytes that surroun...
Document Title (Editable via ‘Slide Master’) | Page 43
Blood enters the spleen through the Splenic
Artery
The blood flows ...
Document Title (Editable via ‘Slide Master’) | Page 44
The Spleen has other functions …
• The spleen acts as a storage are...
Document Title (Editable via ‘Slide Master’) | Page 45
Red Pulp …
• Contains venous sinuses
• The venous sinuses are fille...
Document Title (Editable via ‘Slide Master’) | Page 46
www.ames.kiz.ia.us/...classrooms/21/Human.html
Spleen
Document Title (Editable via ‘Slide Master’) | Page 47
Disorders of the Lymphatic System
• Lymphangitis
• Elephantiasis
• ...
Document Title (Editable via ‘Slide Master’) | Page 48
References
• Brown,D & Edwards,H. (2005) Lewis’s Medical – Surgical...
Document Title (Editable via ‘Slide Master’) | Page 49
List of References
medicine.ucsd.ed/clinicalmed/head.html
medicine....
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Lymphatic system 2014 tas tafe

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Lymphatic system 2014 tas tafe

  1. 1. Document Title (Editable via ‘Slide Master’) | Page 1 Lymphatic System
  2. 2. Document Title (Editable via ‘Slide Master’) | Page 2 “The lymphatic system drains fluid from our tissue spaces” Herlihy, B & Maebius, N, 2003, P.322
  3. 3. Document Title (Editable via ‘Slide Master’) | Page 3 The lymphatic system contains lymph, the lymphatic vessels, the lymphoid organs and lymphatic tissue that is widely distributed throughout the body …
  4. 4. Document Title (Editable via ‘Slide Master’) | Page 4 How stuff works
  5. 5. Document Title (Editable via ‘Slide Master’) | Page 5 The Lymphatic System has three main functions … The Lymphatic System returns tissue fluid to the blood Specialised lymphatic vessels play an important role in the absorption of fats and fat soluble vitamins The lymphoid tissue helps the body defend itself against disease (Herlihy & Maebius 2003)
  6. 6. Document Title (Editable via ‘Slide Master’) | Page 6 Lymphatic System A pathway for the drainage of tissue fluid. Includes: • Lymph nodes • TheTonsils • TheThymus • The Spleen
  7. 7. Document Title (Editable via ‘Slide Master’) | Page 7 All About Lymph … Lymph is a clear fluid that resembles plasma Lymph is composed primarily of: • Water • Electrolytes • Waste from metabolising cells • Protein that leaks out of systemic circulation capillaries
  8. 8. Document Title (Editable via ‘Slide Master’) | Page 8 Where does lymph come from? Lymph is formed from the plasma during capillary exchange … Herlihy 2007 pg 265
  9. 9. Document Title (Editable via ‘Slide Master’) | Page 9 Where does it go to? Lymph leaves the tissue space through the lymphatic vessels The lymphatic vessels carry it to the heart and then empty it into the blood
  10. 10. Document Title (Editable via ‘Slide Master’) | Page 10 Fluid and dissolved substances are continuously filtered out of the blood capillaries into the interstitium to form tissue fluid. About 90% of this tissue fluid moves back into the capillaries and is carried away as part of the venous blood Herlihy, B & Maebius, N, 2003, P.323
  11. 11. Document Title (Editable via ‘Slide Master’) | Page 11 What about the other 10% of fluid? The 10% of fluid that doesn’t re- enter the blood capillaries is drained by the lymphatic capillaries that surround the blood capillaries … The tissue fluid that enters the lymphatic vessels is what we know as lymph
  12. 12. Document Title (Editable via ‘Slide Master’) | Page 12 Lymph Nodes Small pea-shaped patches of lymphatic tissue that are strategically located so as to filter the lymph as it flows through the lymphatic vessels Lymph nodes tend to appear in clusters
  13. 13. Document Title (Editable via ‘Slide Master’) | Page 13 Lymph Nodes Made of specialized lymphoid tissue. Functions include: • Removal of impurities • Processing of lymphocytes which aid in combating infection Are usually massed together. Groups include: • Cervical • Axillary • Tracheobronchial • Mesenteric • Inguinal
  14. 14. Document Title (Editable via ‘Slide Master’) | Page 14 Some of the larger clusters are: • Cervical lymph nodes • Axillary lymph nodes • Inguinal lymph nodes
  15. 15. Document Title (Editable via ‘Slide Master’) | Page 15 How stuff works
  16. 16. Document Title (Editable via ‘Slide Master’) | Page 16 Lymph Node Structure The walls of a lymph node are made from a single layer of epithelium and have large pores. The pores allow the lymphatic capillaries to drain tissue fluid and protein and so form lymph
  17. 17. Document Title (Editable via ‘Slide Master’) | Page 17 medicine.ucsd.ed/clinicalmed/head.html
  18. 18. Document Title (Editable via ‘Slide Master’) | Page 18 Axillary nodes
  19. 19. Document Title (Editable via ‘Slide Master’) | Page 19 The LymphaticVessels The lymphatic vessels include the lymphatic capillaries and several larger lymphatic vessels. The lymphatic vessels, like blood vessels, form an extensive network throughout the body
  20. 20. Document Title (Editable via ‘Slide Master’) | Page 20 The distribution of lymphatic vessels is similar to that of the veins … Every organ has a rich supply of lymphatic vessels that pick up the fluid and transport it to the heart Herlihy, B & Maebius, N, 2003, P.323
  21. 21. Document Title (Editable via ‘Slide Master’) | Page 21 When the lymph is absorbed by the lymphatic capillaries it flows towards the heart in a series of larger and larger lymph vessels until it reaches the large lymphatic ducts … Herlihy, B & Maebius, N, 2003, P.323
  22. 22. Document Title (Editable via ‘Slide Master’) | Page 22 The lymph from the right arm and right side of the head and thorax drains into the right lymphatic duct The lymph from the rest of the body drains into the thoracic duct
  23. 23. Document Title (Editable via ‘Slide Master’) | Page 23 How stuff works
  24. 24. Document Title (Editable via ‘Slide Master’) | Page 24
  25. 25. Document Title (Editable via ‘Slide Master’) | Page 25 Both ducts enter into the subclavian veins The right lymphatic duct drains into the right subclavian vein The thoracic duct drains into the left subclavian vein
  26. 26. Document Title (Editable via ‘Slide Master’) | Page 26
  27. 27. Document Title (Editable via ‘Slide Master’) | Page 27 medicine.ucsd.ed/clinicalmed/head.html
  28. 28. Document Title (Editable via ‘Slide Master’) | Page 28 www.bt.cdc.gov/...trainingmodule/3/03.asp Swollen axillary lymph node
  29. 29. Document Title (Editable via ‘Slide Master’) | Page 29 How lymph moves through the lymphatic vessels Blood is pumped around the body by the heart Lymph requires other mechanisms to move it through the lymphatic vessels
  30. 30. Document Title (Editable via ‘Slide Master’) | Page 30 Lymph moves in response to the following … • The milking action of skeletal muscles • The movement of the chest during respiration • The rhythmic contraction and relaxation of smooth muscles in the lymph capillaries Herlihy, B & Maebius, N, 2003, P.324
  31. 31. Document Title (Editable via ‘Slide Master’) | Page 31 Lymphoedma • REF: thenakedscientists.com • “How the Lymphatic system works” • Stephanie Modi.
  32. 32. Document Title (Editable via ‘Slide Master’) | Page 32 The Lymphoid Organs • Lymph Nodes • The Tonsils • Thymus Gland • The Spleen
  33. 33. Document Title (Editable via ‘Slide Master’) | Page 33 LymphoidTissue Tonsils: Mass of lymphoid tissue that filters tissue fluid. Have a function in immunity during early childhood. Thymus: key role in development of pre and post birth immunity. Spleen: Lymphoid tissue that filters blood. Destroys worn out RBC . Cleans blood by phagocytosis. Dam for blood.
  34. 34. Document Title (Editable via ‘Slide Master’) | Page 34 The Tonsils … The Tonsils are partially encapsulated lymph nodes in the throat area They filter tissue fluid that is contaminated by pathogens that have entered the body through the nose or mouth or both Herlihy, B & Maebius, N, 2003, P.326
  35. 35. Document Title (Editable via ‘Slide Master’) | Page 35 There are three sets of tonsils … • The PalatineTonsils • The PharyngealTonsils (The Adenoids) • The LingualTonsils
  36. 36. Document Title (Editable via ‘Slide Master’) | Page 36 www.dentsl.mu.edu/...oraltonsil/oraltonsil.htm Oral Tonsil
  37. 37. Document Title (Editable via ‘Slide Master’) | Page 37 TheThymus Gland • Located in the upper thorax behind the sternum and below the thyroid gland • It is most active in early life • Plays a crucial role in the development of the immune system before birth and in the first months of life • After puberty it shrinks and is replaced by connective tissue and fat • It is concerned with the manufacture of T Cells Herlihy, B & Maebius, N, 2003, P.327
  38. 38. Document Title (Editable via ‘Slide Master’) | Page 38 TheThymus Gland … cont. The Thymus gland secretes hormones called Thymosins Thymosins promote the maturation of lymphocytes within that gland Thymosins also promote the growth and activity of lymphocytes in lymphoid tissue function throughout the body Herlihy, B & Maebius, N, 2003, P.327
  39. 39. Document Title (Editable via ‘Slide Master’) | Page 39 www.dentsl.mu.edu/...oraltonsil/oraltonsil.htm Thymus Gland
  40. 40. Document Title (Editable via ‘Slide Master’) | Page 40 The Spleen • The Largest lymphoid organ in the body • Located in the upper left quadrant of the abdominal cavity just beneath the diaphragm • Normally protected by the rib cage • It shape and structure is similar to a lymph node, only much larger!
  41. 41. Document Title (Editable via ‘Slide Master’) | Page 41 The Spleen … cont • The Spleen filters blood rather than lymph • The Spleen has two types of tissue: - White Pulp - Red Pulp
  42. 42. Document Title (Editable via ‘Slide Master’) | Page 42 White Pulp • Consists of lymphoid tissue • Lymphocytes that surround arteries are found here
  43. 43. Document Title (Editable via ‘Slide Master’) | Page 43 Blood enters the spleen through the Splenic Artery The blood flows through the spleen and is cleansed Micro-organisms that are trapped in the spleen are destroyed by the Leukocytes The cleansed blood leaves by the SplenicVein
  44. 44. Document Title (Editable via ‘Slide Master’) | Page 44 The Spleen has other functions … • The spleen acts as a storage area for blood • The blood is released in an emergency • The Spleen also destroys old worn out red blood cells • The Spleen plays a role in erythropoiesis as a site of red blood cell production before birth Herlihy, B & Maebius, N, 2003, P.327
  45. 45. Document Title (Editable via ‘Slide Master’) | Page 45 Red Pulp … • Contains venous sinuses • The venous sinuses are filled with blood, lymphocytes and macrophages
  46. 46. Document Title (Editable via ‘Slide Master’) | Page 46 www.ames.kiz.ia.us/...classrooms/21/Human.html Spleen
  47. 47. Document Title (Editable via ‘Slide Master’) | Page 47 Disorders of the Lymphatic System • Lymphangitis • Elephantiasis • Lymphadenitis • Lymphadenopathy • Splenomegaly • Hodgkin’s Disease • Lymphoscarcoma.
  48. 48. Document Title (Editable via ‘Slide Master’) | Page 48 References • Brown,D & Edwards,H. (2005) Lewis’s Medical – Surgical Nursing.Assessment and Management of Clinical Problems. Elsevier , Sydney • Memmler, R. L. &Wood, D. L. (1987) The Human Body in Health and Disease. (6th ed). J.B. Lippincott company, Philadelphia. • Mosby’s (2002) Mosby’s Medical Nursing & Allied Health Dictionary. Elsevier, United States of America. • Tortora, GJ & Grabowski, SR (1990) Principles of anatomy and physiology (6th ed).. HarperCollins Publishers Inc. New York. 48
  49. 49. Document Title (Editable via ‘Slide Master’) | Page 49 List of References medicine.ucsd.ed/clinicalmed/head.html medicine.ucsd.ed/clinicalmed/head.html www.bt.cdc.gov/...trainingmodule/3/03.asp www.cvm.tamu.edu/.../faq/question/cancer02.html www.dentsl.mu.edu/...oraltonsil/oraltonsil.htm www.dentsl.mu.edu/...oraltonsil/oraltonsil.htm www.ames.kiz.ia.us/...classrooms/21/Human.html Herlihy, B & Maebius, N, The Human Body in Health and Illness 2nd Edition,2003, Saunders, United States of America

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