click below
click below
Normal Size Small Size show me how
CDC 1-2
Lymphatic System
Question | Answer |
---|---|
The lymphatic system consists of two functions: | (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, and (2) 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 ____. _____ 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 |
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. The __ is the largest lymphatic organ. It is located in the upper left quadrant of the abdomen, inferior to the diaphragm and post | spleen |
Excess fluid from the body tissues enters the lymphatic capillaries. Once the fluid is inside the capillaries, it is known as _____. | lymph |