Term
| Name 3 main functions of the Lymphatic |
|
Definition
1. Fluid Recovery
2. Immunity-Immune cells in nodes
3. Lipid Absorption- Lacteals(small Intest) |
|
|
Term
| Components of the Lymphatic system |
|
Definition
lymph: recovered fluid
lymphatic vessels:transport lymph
Lymphatic Tissue: aggragates of lymphocytes and macrophages
Lymphatic Organs |
|
|
Term
|
Definition
is usually a clear, colorless fluid, similar to blood plasma but low in protein.
Originates as tissue fluid(thats been taken up by lymphatic vessels) |
|
|
Term
|
Definition
Similar to blood vessels, lymph flows through this system.
Lymphatic Capillaries (terminal lymphatics)-->Collecting Vessels-->Lymphatic trunks(6)-->Collecting Ducts(2 collecting vessels)-->Subclavian veins |
|
|
Term
|
Definition
Microscopic.
Penetrate nearly every tissue of the body but are absent from the central nervous system, cartilage, cornea, bone, and bone marrow. (Unlike blood cap. they are closed at one end.) |
|
|
Term
| Name the 6 major lymphatic trunks |
|
Definition
| jugular, subclavian, bronchomediastinal, intercostal, intestinal, and lumbar |
|
|
Term
|
Definition
| The largest of the lymphatic vessels |
|
|
Term
| Name the 2 collecting ducts |
|
Definition
Right lymphatic duct
Thoracic duct |
|
|
Term
Right Lymphatic duct:
location?
Where does it empty? |
|
Definition
Formed by convergence of the right jugular, subclavian, and bronchomediastinal.
Empties into the right subclavian vein. |
|
|
Term
Location of theThoracic Duct:
|
|
Definition
| On the left side, begins just below the diaphragm-anterior to the vertebral column @ level of second lumbar vertebrae |
|
|
Term
|
Definition
| Where the 2 lumbar trunks and intestinal trunk join. Prominent sac. Large amount of Chyle(fatty intestinal lymph) |
|
|
Term
| Thoracic (respiratory) Pump |
|
Definition
| promotes the flow of lymph from the abdominal to the thoracic cavity as one inhales, similar to that of the venous return. |
|
|
Term
|
Definition
Large lymphocytes. Attack and destroy bacteria, transplanted tissue cells, and host cells that have either become infected with viruses or turned cancerous.
Immune Surveillance |
|
|
Term
|
Definition
T cells:
Lymphocytes that mature in the thymus and later depend upon thymic hormones.
Thymus-dependant |
|
|
Term
|
Definition
B Cells:
Lymphocytes that differentiate into plasma cells- conn. tissue cells that secrete the antibodies of the immune system.
B for Bone Marrow-Site of maturation |
|
|
Term
|
Definition
| Very large.Develope from Monocytes and Phagocytize and Destroy tissue debris. |
|
|
Term
Antigen-Presenting Cells
APCs |
|
Definition
| Process foreign matter and display antigenic fragments of it to certain T cells, alerting the immune system of the presence of an enemy. |
|
|
Term
|
Definition
Branched, mobile APCs found in the epidermis, mucous membranes, and lymphatic organs.
Play an important role in alerting the immune system of pathogens that have breached the body surfaces. Engulf foreign matter by receptor-mediated endocytosis rather than phagocytosis. |
|
|
