Lymphatic Flashcards
4 main functions of the lymphatic system
absorb excess interstitial fluid
absorb dietary fats
produce, maintain, and distribute lymphocytes
fighting pathogens
lymph node
small, bean-sized masses of tissue located in various regions of the body, including the neck, axillary regions, central thoracic region, inguinal areas, and gastrointestinal tract
What happens to lymph nodes during inflammatory process?
they become enlarged and tender
What do leukemia and lymphoma cause?
immunosuppression
What is the first line of treatment for leukemias and lymphomas?
chemotherapy, radiation, and bone marrow transplantation.
5 signs of inflammation:
rubor (redness), tumor (swelling), calor (heat), dolor (pain), and loss of function (function laesa).
What causes the s/s of autoimmune disease?
the immune system is producing antibodies, known as IgS, that are targeting some the body’s own cells
What is leukocytosis?
An increase in WBCs released from the bone marrow into the bloodstream.
CD4 cells
type of T lymphocyte
mature with the thymus gland
involved in cell-mediated immunity; target of HIV
What are the main parts of the lymph system?
Lymph
lymph nodes
lymphatic vessels
collecting ducts
spleen
thymus
tonsils & adenoids
bone marrow
peyer’s patches
appendix
Why is lymph?
Fluid that contains proteins, minerals, fats, nutrients, damaged cells, cancer cells, and foreign invaders (bacteria, viruses, etc)
What is a lymph node?
bean shaped glands that monitor and cleanse the lymph. About 600 throughout the body
What is the purpose of the spleen?
largest lymphatic organ
filters and stores blood and produces WBCs
What is the purpose of tonsils and adenoid?
trap pathogens from food and air
What are Peyer’s Patches?
small masses of lymphatic tissues in the mucous membranes that line the small intestine.
Monitor and destroy bacteria in the intestines
