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Chapter 10
Organs & Anatomic Structures of the Lymphatic System
| Term | Definition |
|---|---|
| lymph | transparent, colorless, tissue fluid; contains lymphocytes and monocytes and flows in a 1-way direction toward the heart |
| lymphatic vessels | transport lymph from body tissues into the right and left subclavian veins, which empty into the superior vena cava. Begin as capillaries spread throughout the body then merge into larger tubes that become ducts in the chest. Provide a one way flow |
| lymph nodes | small, spherical bodies composed of lymphoid tissue. May be singular or grouped together along the path of lymph vessels. Filter lymph to keep substances (bacteria) from entering blood |
| spleen | located in left side of the abdominal cavity between stomach and diaphragm. Largest lymphatic organ. Blood flows through and cleansed of microorganisms. Stores blood and destroys word out red blood cells |
| thymus gland | one of the primary lymphatic organs, located anterior to the ascending aorta and posterior to the sternum between the lungs. Plays important role in development of body's immune system, particularly infancy to puberty-shrinks so most is connective tissue |
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