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CDC 1-2
Physiology of the Lymphatic System
Question | Answer |
---|---|
Excess fluid from the body tissues enters the lymphatic capillaries. Once the fluid is inside the capillaries, it is known as _____. | lymph |
2 Functions of Lymphatic System are: | 1. to help maintain a proper fluid balance by removing excess fluid from the interstitial spaces that exist between cells and within most body tissues, 2. and to help defend the body against infection |
______ run parallel to the capillaries of the circulatory system. They are microscopic tubes that extend into the spaces within the body tissues (interstitial spaces). Like blood capillaries, ______ have a thin membrane wall. | Lymphatic capillaries |
Lymphatic capillaries merge and form ______. These vessels are similar to the veins in structure. | lymphatic vessels |
The larger lymphatic vessels lead to special organs called lymph nodes. _____ act as the filters of the lymphatic system. | Lymph nodes |
The vessels that lead into the node are called ______. | afferent lymphatic vessels |
The vessels that lead out of the node are known as ______. | efferent lymphatic vessels |
After lymphatic vessels pass through the lymph nodes, they merge to form larger vessels known as ______. Each of these trunks is named according to the body region that it serves. | lymphatic trunks |
All of the lymphatic trunks join to form one of the two collecting ducts in the body. These two ducts are the ______ and ______. | thoracic duct and the right lymphatic duct. |
The thoracic duct joins with the ______. The merging of these two ducts with the left and right subclavian veins is what ties the lymphatic system to the circulatory system. | left subclavian vein |
The right lymphatic duct joins with the _____. The merging of these two ducts with the left and right subclavian veins is what ties the lymphatic system to the circulatory system. | right subclavian vein |
The _____ is a lymphatic organ with a function closely related to that of the lymph nodes. It is located in the mediastinum, anterior to the aorta and posterior to the sternum. The _____ extends from the base of the neck to the pericardium. | thymus |
Like the thymus, the _____ is a specialized organ of the lymphatic system with a function similar to that of the lymph nodes. It is located in the upper left quadrant of the abdomen, inferior to the diaphragm and posterior to the stomach. | spleen |