Đang chuẩn bị liên kết để tải về tài liệu:
Lecture Medical assisting: Administrative and clinical procedures (5e) - Chapter 28: The lymphatic and immune systems

After studying this chapter you will be able to: Describe the components of blood, giving the function of each component listed; explain how bleeding is controlled; explain the differences among blood types A, B, AB, and O, including in the discussion which blood types are compatible;. | 28 The Lymphatic and Immune Systems Learning Outcomes (cont.) 28.1 Describe the pathways and organs of the lymphatic system. 28.2 Compare the nonspecific and specific body defense mechanisms. 28.3 Explain how antibodies fight infection. Learning Outcomes (cont.) 28.4 Describe the four different types of acquired immunities. 28.5 Describe the causes, signs and symptoms, and treatments of major immune disorders. Introduction Immune system Protects against Bacteria Viruses Fungi Toxins Parasites Cancer Lymphatic system Works with the immune system Organs Thymus Spleen Lymph nodes Learning Outcome: 28.1 Describe the pathways and organs of the lymphatic system. The Lymphatic System Network of connecting vessels Functions to Collect lymph from between cells Collect lipids from digestive organs Defend the body against pathogens Learning Outcome: 28.1 Describe the pathways and organs of the lymphatic system. The Lymphatic System Collects lymph and return it to the . | 28 The Lymphatic and Immune Systems Learning Outcomes (cont.) 28.1 Describe the pathways and organs of the lymphatic system. 28.2 Compare the nonspecific and specific body defense mechanisms. 28.3 Explain how antibodies fight infection. Learning Outcomes (cont.) 28.4 Describe the four different types of acquired immunities. 28.5 Describe the causes, signs and symptoms, and treatments of major immune disorders. Introduction Immune system Protects against Bacteria Viruses Fungi Toxins Parasites Cancer Lymphatic system Works with the immune system Organs Thymus Spleen Lymph nodes Learning Outcome: 28.1 Describe the pathways and organs of the lymphatic system. The Lymphatic System Network of connecting vessels Functions to Collect lymph from between cells Collect lipids from digestive organs Defend the body against pathogens Learning Outcome: 28.1 Describe the pathways and organs of the lymphatic system. The Lymphatic System Collects lymph and return it to the bloodstream Picks up and transports them to the bloodstream. Lymphatic Pathways Lymphatic capillaries Collect fluid Deliver lymph to lymphatic vessels Lymph vessels – lymph to nodes Lymph nodes Remove pathogens Start immune response Lymph System Learning Outcome: 28.1 Describe the pathways and organs of the lymphatic system. Lymphatic capillaries Extend into the interstitial spaces. Have thin, permeable walls that are designed to pick up fluids. Once fluid enters the lymphatic capillaries, it is called lymph. Deliver lymph to lymphatic vessels which delivers it to the lymph nodes. The cells inside the lymph nodes remove pathogens or start an immune response against the pathogen. Lymphatic Pathways (cont.) Efferent lymphatic vessels lymphatic trunks Lymphatic collecting ducts Thoracic duct Right lymphatic duct Empty into blood stream Lymph System Learning Outcome: 28.1 Describe the pathways and organs of the lymphatic system. Lymph fluid travels away from the lymph nodes through .