What are the structures of the lymphatic system and their functions?
The primary lymphoid organs are the red bone marrow, in which blood and immune cells are produced, and the thymus, where T-lymphocytes mature. The lymph nodes and spleen are the major secondary lymphoid organs; they filter out pathogens and maintain the population of mature lymphocytes.
- Primary lymphoid organs: These organs include the bone marrow and the thymus. ...
- Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel).
What is the structure of the lymphatic system? The lymphatic system consists of lymphatic cappillaries, lymphatic vessals, lymph nods and lymphatic ducts. The fluid in lymphatic capillaries and vessels is called lymph.
There are three primary functions of the lymphatic system: first is the maintenance of fluid balance, second is the facilitation of the absorption of dietary fats from the gastrointestinal tract to the bloodstream for metabolism or storage, and third is the enhancement and facilitation of the immune system.
The lymphatic (lim-FAT-ik) system works to keep body fluid levels in balance and to defend the body against infections. It is made up of a network of lymphatic vessels that carry lymph — a clear, watery fluid that contains proteins, salts, and other substances — throughout the body.
The lymphatic system helps maintain fluid balance in the body by collecting excess fluid and particulate matter from tissues and depositing them in the bloodstream. It also helps defend the body against infection by supplying disease-fighting cells called lymphocytes.
The lymphatic system includes a network of vessels, ducts, and nodes, as well as organs and diffuse tissue that support the circulatory system. These structures help to filter harmful substances from the bloodstream.
Lymph nodes are kidney or oval shaped and range in size from 2 mm to 25 mm on their long axis, with an average of 15 mm. Each lymph node is surrounded by a fibrous capsule, which extends inside a lymph node to form trabeculae. The substance of a lymph node is divided into the outer cortex and the inner medulla.
What are the functions of the Lymphatic System? To transport fluids back to blood and act as the bodies defense and resistance to disease.
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A one-way network of lymphatic vessels containing a fluid called lymph.
- Fluid balance.
- Protection (immunity)
- Nutrient absorption.
What are the three main functions of the lymphatic system quizlet?
- Carry fluid leaked out from bloodstream back to the blood.
- Filter out and phagocytize foreign agents.
- Produce and "activate" lymphocytes (B cells and T cells)
- transports proteins and fluids.
- protects body against pathogens.
- serves as a pathway for the absorption of fats.
This system includes the bone marrow, spleen, thymus, lymph nodes, and lymphatic vessels (a network of thin tubes that carry lymph and white blood cells). Lymphatic vessels branch, like blood vessels, into all the tissues of the body.
- Vessels. Lymphatic vessels highlighted in blue. Image from Human Anatomy Atlas. ...
- Nodes. Image from Human Anatomy Atlas. ...
- The Tonsils. Image from Human Anatomy Atlas. ...
- The Thymus. Image from Human Anatomy Atlas. ...
- The Spleen. Image from Human Anatomy Atlas.
What are the functions of the Lymphatic System? To transport fluids back to blood and act as the bodies defense and resistance to disease.