Lymphatic System
The tonsils exist in three pairs:
1.The palatine tonsils are located on each side of the soft palate. 2.The pharyngeal tonsils, or adenoids, are located in the upper part of the throat. 3.The lingual tonsils are located at the back of the tongue.
The lymphatic system performs these functions:
1.Transports excess fluid from tissues back into the cardiovascular system 2.Filters out harmful bacteria and other foreign substances 3.Destroys and removes old red blood cells.
Diseases and Disorders of the Lymphatic System:
Allergies Autoimmune Disease Hodgkin's Disease
How is lymph moved through lymphatic vessels?
Contractions of skeletal muscle around the vessels
The swelling of lymph nodes is associated with a great deal of pain. (T or F)
False
Toward what area of the body does lymph flow?
Heart
Which of these conditions is the most common tumor found in lymph tissue?
Hodgkin's disease
Where are antibodies produced?
Lymph Nodes
Which tissue produces lymphocytes and filters out impurities and harmful substances?
Lymph nodes
interstitial fluid or intercellular fluid
Since lymph fills the spaces between tissue cells
lacteals
Special capillaries pick up digested lipids, or fats, from the small intestine.
Which lymphatic tissue destroys and removes old red blood cells?
Spleen
Which of the following is used to treat the inflammation of autoimmune disease-?
Steroids
Allergy Symptoms:
Symptoms of an allergy may include difficulty breathing, runny nose, itchy eyes, hives, and rashes. In severe cases, an allergic reaction may be life-threatening.
Cause of allergy?
The substances that cause allergies are called allergens.
Which of the following is true of lymphatic vessels?
They are located in organs and muscles that have blood vessels.
What do Lymph Nodes do?
They filter out impurities, such as carbon and dead blood cells, as well as harmful matter, such as bacteria and cancer cells. Lymph nodes also produce lymphocytes, which are special white blood cells, and antibodies, which are substances used to fight infection.
Which of these vessels drains the lymph from all parts of the body except the right side of the chest?
Thoracic duct
What is the purpose of antibodies?
To fight infection
What is the purpose of the thymus?
To protect against childhood disease.
Which of these items are contained in lymph?
White blood cells
Hodgkin's Disease
a chronic disorder of the lymph nodes. It is the most common tumor found in lymph tissue.
thoracic duct, or left lymphatic duct
a much larger tube that drains the lymph from the rest of the body.
Substances that cause allergies, such as pollen, plant oils, and dander, are called _______.
allergens, allergen
Lymphatic Vessels are located:
almost all of the tissues and organs that have blood vessels, although they are separate from blood vessels.
Hodgkin's Disease Treatment involves
chemotherapy and radiation.
Allergy Treatment involves
desensitization to the allergen or anti-inflammatory medication.
Lymphatic Vessels
form a branchlike pattern through the body.
Autoimmune Disease
is a condition in which the body's immune system turns against itself. It mistakenly attacks normal cells in the body. In many cases, the cause is not known, but some causes may include heredity or viruses. There are many different autoimmune diseases. Depending on which cells are targeted, they can affect the body in different ways.
Lymph
is a watery fluid similar to blood plasma.
spleen
located beneath the left side of the diaphragm and behind the upper part of the stomach. It stores large amounts of red blood cells, which it releases during excessive bleeding or vigorous exercise. It also destroys and removes old red blood cells.
thymus
located in the center of the upper chest. It is used to resist disease during childhood. After puberty, the thymus wastes away to be replaced by fat and connective tissue.
Lymph Nodes
located in various places along the paths of lymph vessels throughout the body, usually in groups.
what direction does Lymph move?
lymph moves in only one direction - toward the heart. Valves in the lymph vessels prevent backward flow.
Other Lymphatic Tissue
lymphatic tissue can also be found in the tonsils, the spleen, and the thymus. Like other lymphatic tissues, they produce lymphocytes and screen filter out foreign substances.
Autoimmune Disease Treatment involves
medication to suppress the immune response and steroids to relieve inflammation.
Allergy
occurs when the body has a hypersensitive response to an outside substance that is otherwise harmless. As a result, antibodies form in the blood to fight the substance.
Hodgkin's Disease Symptoms include
painless swelling of the lymph nodes, fever, weight loss, fatigue, and itching. Treatment involves chemotherapy and radiation.
Common allergens include:
pollen, plant oils, dander, bee stings, and drugs.
right lymphatic duct
receives the lymph from the right side of the chest, head, neck, and arm.
Movement of Lymph
the lymphatic system has no pump. The contractions of the skeletal muscles around the lymphatic vessels keep the lymph flowing.
Lymphatic System
works along with the cardiovascular system to remove waste material.
