1. 2.03 Remember the structures of the lymphatic system

2. What are the structures of the lymphatic system? 2.03 Remember the stuctures of the lymphatic system 2

3. Structures of the lymphatic system  Lymph fluid 3  Lymph glands  Lymph vessels  Lymph nodes

4. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 4 Lymph fluid straw-colored Clear Contains: Water Granulocytes Lymphocytes

5. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 5 Lymph vessels parallel to blood vessels transport lymph Carries digested food, oxygen, hormones to cells Excretes urea and carbon dioxide away from the cells

6. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 6 Lymph vessels parallel to blood vessels

7. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 7 Lymph vessels Lacteals Specialized lymph vessels in the small intestines, absorb digested fats and transport them to the circulatory system

8. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 8 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 heart)

9. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 9 Lymph nodes tiny, oval-shaped structures tiny, oval-shaped structures range in size from a pinhead to an almond range in size from a pinhead to an almond Recognize a foreign substance and release lymphocytes, reach the blood and anitbodies are made to attack the microorganism Recognize a foreign substance and release lymphocytes, reach the blood and anitbodies are made to attack the microorganism Lymph node

10. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 10 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

11. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 11 Tonsils 3 pairs masses of lymphatic tissue 1.Palatine tonsils sides of throat 2.Adenoids upper throat 3.Lingual tonsils back of tongue

12. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 12 Say “aahhh” Why this is helpful?

13. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 13 Spleen Sac-like mass of lymphatic tissue Located in the LUQ Forms lymphocytes and monocytes; blood passing through is filtered Destroys old erythrocytes

14. 2.03 Remember the stuctures of the lymphatic system Thymus gland located in the upper, anterior chest located in the upper, anterior chest also an endocrine gland also an endocrine gland Produces T- lymphocytes Produces T- lymphocytes 14 Structures of the lymphatic system

15. 2.03 Remember the stuctures of the lymphatic system Structures of the lymphatic system 15 Thymus gland What is unique about the thymus gland?

16. 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