Lymphatic System Deck Flashcards
functions of the lymphatic system
- to work with the cardiovascular system to remove waste material
- to transport excess fluid from tissues back into the cardiovascular system
- to filter out harmful bacteria and other foreign substances
- to destroy and remove old red blood cells
lymph
consists of white blood cells
right lymphatic duct
collects lymph from the right side of the chest, head, neck, and arm
thoracic duct
(much larger tube than right lymphatic duct) drains the lymph from the rest of the body
how lymph gets pumped through the body
by the contractions of the skeletal muscles around the lymphatic vessels that keep the lymph flowing
job of lymph nodes
- to filter out harmful impurities (ex.: carbon and dead blood cells)
- to filter out harmful matter (ex.: bacteria and cancer cells)
products of lymph nodes
- lymphocytes
2. antibodies
lymphocytes
special white blood cells
antibodies
substances used to fight infection
lingual tonsils
located at the back of the tongue
location of the thymus
located in the center of the upper chest
location of the spleen
located beneath the left side of the diaphragm and behind the upper part of the stomach
pharyngeal tonsils
located in the upper part of the throat
palatine tonsils
located on each side of the soft palate
purpose of thymus
used to resist disease during childhood
function of the spleen
stores new red blood cells and destroys old red blood cells
allergies
occurrences when the body has a hypertensive response to an outside substance that is otherwise harmless
common allergens
- pollen
- plant oils
- dander
- bee stings
- drugs
symptoms of an allergy
may include difficulty breathing, runny nose, itchy eyes, hives, rashes
in severe cases of an allergy
an allergic reaction may cause anaphylaxis
anaphylaxis
can be life-threatening
treatment for an allergen
involves desensitization to the allergen or anti-inflammatory medication
autoimmune diseases
conditions in which the body’s immune system turns against itself
the immune system to an autoimmune disease
mistakenly attacks normal cells in the body
causes of autoimmune disease
many cases - unknown; some may include heredity or viruses
treatments for an autoimmune disease
involves medication to suppress the immune response and steroids to relieve inflammation
Hodgkin’s disease
a chronic disorder of the lymph nodes
the most common tumor found in lymph tissue
Hodgkin’s disease
symptoms of Hodgkin’s disease
include painless swelling of the lymph nodes, fever, weight loss, fatigue, itching
treatment for Hodgkin’s disease
involves chemotherapy and radiation