BIOL 208 Lecture Notes - Lecture 6: Thymus, Cecum, Thoracic Duct
Document Summary
Functions: drains excess tissue uid, acts as the main site for the immune system, components: There are also some lymphatic organs: there are ending lymph capillaries, these have a very leaky endothelium, the cells of the endothelium overlap. & don"t fully attach: the capillary cells overlap tell me. Lymph nodes: contain b cells that may grow clones in response to a disease organism, contain t cells that recognize & respond to infected cells, dendritic cells - involved in rst exposure to a pathogen, macrophages. Large organ with areas of lymph tissue. There are also vast areas containing rbcs. Mainly an area for processing blood (acts as a storage site for blood cells) Mucosa associated lymphatic tissues: epithelial lining of spaces that open to the outside, tonsils - mainly line the throat. Pair of palatine (on on each side) Pharyngeal (adenoids) on back wall of the nasopharynx.
