Chapter 16 a&P Study Guide
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Chapter 16-Lymphatic System & Immunity
Take Home Quiz
1. Explain the functions of the lymphatic system. Transports excess fluid to the bloodstream, absorbs fats, and helps the body defend against disease causing agents.
2. Trace the general pathway of lymph from the interstitial spaces to the bloodstream. The lymphatic capillary network is found next to the systemic and pulmonary capillary networks. It then travels through lymph vessels into lymph nodes. It returns to lymph vessels and then is returned into the bloodstream at various points.
3. Distinguish between tissue fluid and lymph. Tissue fluid originates from plasma and includes water and dissolved substances that have passed through the blood capillary wall. Lymph is just tissue fluid that has entered into a lymphatic capillary.
4. Describe the primary functions of lymph. Return the proteins to the bloodstream to the bloodstream that have leaked from the blood capillaries and to transport bacteria and other foreign particles to the lymph nodes.
5. Explain why physical exercise promotes lymphatic circulation. For the contractions of skeletal muscles, pressure change from breathing muscles and smooth muscle contractions of the large lymphatic trunks.
6. Explain how a lymphatic obstruction leads to edema. The continuous movement of fluid from the interstitial spaces into the lymphatic system stabilizes the volume of fluids in those spaces, when there is an obstruction the fluid builds up resulting in edema.
7. Sketch a lymph node, and label its parts. Lymph nodes are enclosed in a capsule of fibrous connective tissue that subdivides into compartments that contain dense masses of lymphocytes and macrophages. These masses are called nodules and are the structural units of a lymph node. Lymph nodes aid in lymphocyte production and the phagocytosis of foreign substances, damaged cells, and cellular debris.
8. Describe the major body regions containing lymph nodes.
Chapter 16-Lymphatic System & Immunity
Take Home Quiz
1. Explain the functions of the lymphatic system. Transports excess fluid to the bloodstream, absorbs fats, and helps the body defend against disease causing agents.
2. Trace the general pathway of lymph from the interstitial spaces to the bloodstream. The lymphatic capillary network is found next to the systemic and pulmonary capillary networks. It then travels through lymph vessels into lymph nodes. It returns to lymph vessels and then is returned into the bloodstream at various points.
3. Distinguish between tissue fluid and lymph. Tissue fluid originates from plasma and includes water and dissolved substances that have passed through the blood capillary wall. Lymph is just tissue fluid that has entered into a lymphatic capillary.
4. Describe the primary functions of lymph. Return the proteins to the bloodstream to the bloodstream that have leaked from the blood capillaries and to transport bacteria and other foreign particles to the lymph nodes.
5. Explain why physical exercise promotes lymphatic circulation. For the contractions of skeletal muscles, pressure change from breathing muscles and smooth muscle contractions of the large lymphatic trunks.
6. Explain how a lymphatic obstruction leads to edema. The continuous movement of fluid from the interstitial spaces into the lymphatic system stabilizes the volume of fluids in those spaces, when there is an obstruction the fluid builds up resulting in edema.
7. Sketch a lymph node, and label its parts. Lymph nodes are enclosed in a capsule of fibrous connective tissue that subdivides into compartments that contain dense masses of lymphocytes and macrophages. These masses are called nodules and are the structural units of a lymph node. Lymph nodes aid in lymphocyte production and the phagocytosis of foreign substances, damaged cells, and cellular debris.
8. Describe the major body regions containing lymph nodes.