Lymphatic Tissue.docx

Lymphatic Tissue Anatomy ATE 1110 Chapter 9 Pages 239-242 Objectives To become familiar with the anatomy of the lymph system To understand the function of the lymphatic system To be able to describe how lymph is removed and transported To describe the characteristics of lymph To be able to descr...

Lymphatic Tissue Anatomy ATE 1110 Chapter 9 Pages 239-242 Objectives To become familiar with the anatomy of the lymph system To understand the function of the lymphatic system To be able to describe how lymph is removed and transported To describe the characteristics of lymph To be able to describe how the role of the different areas of the lymphatic system Lymphatic System Series of vessel or ducts that carries excess fluid to the blood vessels near the heart The fluid is then put back into the blood stream The fluid carried is called lymph Structures: Lymph nodes Spleen Thymus Tonsils Gut associated lymph tissue (GALT) Lymph Begins as excess tissue fluid that has been picked up by lymph capillaries The reason there is more excess tissue fluid is that more fluid leaves the blood capillaries than reenters them Characteristics Lymph at the time it reaches the thoracic duct is transparent liquid Differs from plasma Chyle After eating the chyle contains small fat particles and this causes the chyle to be cloudy Comparments Bone marrow Central lymphoid organs Peripheral lymphoid organs Function Removal of excess tissue fluid Waste material transport Filtration of lymph Protein transport Lymphatic Structures Lymph nodes Medulla Cortex Spleen Functions: Blood storage Removal of foreign material Removal of dead or abnormal RBCs Clones lymphocytes during an immune response Thymus Kick start Tonsils Peripheral lymphoid tissue GALT (gut associated lymph tissue) Refers to lymph tissue found in the lining of the intestinal tract 25% of the intestinal mucosa is GALT Review Describe the anatomy of the lymph system What is the function of the lymphatic system Describe how lymph is removed and transported Describe the physical characteristics of lymph Describe the role the different areas of the lymphatic system