lymphatic Flashcards
• Provides an important immune mechanism for the body
Lymphatic System
Lymphatic System is involved in the __ of cancer cells and provides a route for transporting fat and large protein molecules absorbed from the intestine to the thoracic duct
metastasis
Serve as one-way drainage toward the heart and return lymph to the bloodstream through the thoracic duct or the right lymphatic duct
Lymphatic Vessels
what is the largest lymphatic vessel?
thoracic duct
Lymphatic Vessels function to ______ and transport them to the bloodstream because molecules cannot pass through the walls of the blood capillaries back into the blood.
absorb large protein molecules
True or false: Lymphatic vessels have valves.
True
Begin blindly in most tissues, collect tissue fluid, and join to form large collecting vessels that pass to regional lymph nodes.
Lymphatic Capillaries
Lymphatic Capillaries __ __ from tissue spaces and transport it back to the venous system.
Absorb lymph
Lymphatic Capillaries are called __ in the villi of the small intestine, where they absorb emulsified fat.
lacteals
• Are organized collections of lymphatic tissue permeated by lymph channels.
Lymph Nodes
What do lymph nodes produce?
Produce lymphocytes and plasma cells (which will later mature into immunoglobulins which will fight foreign body detected)
What do lymph nodes do to the lymph?
Filters it
Lymph nodes • Trap __ drained from an infected area and contain reticuloendothelial cells and __ __ (macrophages) that ingest these bacteria.
bacteria; phagocytic cells
How are lymph nodes when there is a metastasis and during infection?
metastasis - Hard and often palpable
infection - enlarged and tender
• A clear, watery fluid that is collected from the intercellular spaces
Lymph
