Vessels and Valves
Lymphatic capillaries
Posterior, lateral, and superior to the stomach, this is the largest organ in the lymphatic system.
The spleen
What is the scientific, general term used to describe all white blood cells?
Leukocytes
Name 3 lymph node groups
Cervical, axillary, inguinal, pectoral
What is the name for the tissue fluid once it leaves the tissues and enters a capillary?
Lymph
Located in the upper chest, this organ trains T cells.
Thymus
What are macrophages?
Phagocytes that result form monocytes (type of leukocyte). They are produced in the bone marrow and eat pathogens (e.g. bacteria).
Why is the immune system so important to homeostasis?
What structures maintain the "flow toward the heart" in larger lymphatic vessels (veins have this structure too)?
One-way valves
What are the physical tissue lumps at the back of one's throat that catch pathogens/large dust particles as they are inhaled or swallowed?
The tonsils
How do lymph nodes serve as "surveillance" for the body?
Lymph nodes operate as security checkpoints that filter lymph for any trapped pathogens or debris. Inside, B cells create antibodies to signal the immune system to stop the pathogen.
Which lymph node group is tightly packed along the sternocleidomastoid muscle?
Cervical lymph nodes
Other than one-way valves, what helps lymphatic vessels to keep fluid moving?
Muscle contractions
What is the soft tissue inside the cavities of long bones that is the primary site of hematopoeisis, where immune cells are created?
Bone marrow
What are lymphocytes? (Including B and T lymphocytes)
A major type of leukocyte that recognize, remember, and destroy specific pathogens to build immunity.
This lymphatic vessel drains lymph exclusively from the right quadrant of the body into the right subclavian vein.
Right lymphatic duct
What are the microscopic, thread-like fibers that physically anchor lymphatic capillaries to the surrounding tissue cells.
Anchoring filaments
What are the small clumps of immune tissue built directly in the walls of one's intestines?
These specific Y-shaped proteins are secreted by mature B cells to attach to and neutralize/flag specific pathogens.
What are antibodies (or immunoglobulins)
This large lymphatic vessel begins at the cisterna chyli in the abdomen and travels upward to empty into the left subclavian vein.
Thoracic duct