The Lymphatic System - PC\|MAC

The Lymphatic System Lymphatic System -Consists of: Lymph, lymph vessels, lymph nodes and lymphatic tissue -System works in conjunction with the circulatory system to remove waste and excess fluids from the tissues -Lymph-a thin watery fluid composed of intercellular and interstitial fluid which forms when plasma diffuses into the tissue spaces. -Components are: water, digested nutrients, salts, hormones, oxygen carbon dioxide, lymphocytes, and

metabolic wastes like urea. -Lymphatic Vessels-small open-ended vessels that act as drain pipes are located throughout the body where blood vessels are found. AKA Lymphatic capillaries -Capillaries connect to larger vessels that then take fluid to lymph nodes. -Capillaries also contain valves that only allow fluid to travel in one direction. -Skeletal muscle contraction aides in movement of fluid through the vessels. Lymphatic Capillaries Lymphatic System

-Lacteals are specialized lymphatic capillaries found in the small intestine. -These pick up digested lipids and transport them back to the thoracic duct. -Lymph mixed with lipids is called Chyle Lymphatic System Lymph Nodes- AKA Lymph glands, are small round or oval shaped masses that are found all over the body. Usually located in clusters, these masses vary in size from that of a pin-head to the size of an

almond. Vessels bring lymph to the nodes where it is filtered to remove impurities such as; carbon, cancer cells, pathogens and dead blood cells. Node tissue also produces lymphocytes (a type of white blood cell that fights infection) and specific antibodies. This purified lymph with antibodies and lymphocytes leaves the node through a single vessel; as the fluid drains from one vessel it continues to flow into larger and larger vessels eventually draining into one of two lymphatic ducts. Lymphatic System

Lymphatic System Lymphatic Ducts -Right Lymphatic Duct-Short tube that receives all the purified lymph from the right side of the head and neck, the right chest and the right arm. It dumps into the right subclavian vein, returning the lymph to the blood. -The Thoracic Duct-largest duct in the body collects the lymph from everywhere else. The duct drains into the left subclavian vein to return fluid to the body. -At its beginning is a large pouch like structure where purified lymph is stored called the cisterna chyli. -The Cisterna Chyli also receives chyle from the intestinal lacteals

Lymphatic System Right Lymphatic Duct Thoracic Duct Lymphatic System Lymph Tissue is also found in other parts of the body as well those include: The Tonsils: Filter interstitial fluid and are found in three pairs: Palatine Tonsils; located on either side of the soft palate, Pharyngeal Tonsils; located in the nasopharynx aka adenoids, Lingual tonsils; located at

the back of the tongue -The Spleen; Organ located beneath the left side of the diaphragm and in the back of the upper part of the stomach. -The Thymus-Located in the center of the upper chest of children, it atrophies after puberty and is replaced by fat and connective tissue. Lymphatic System Tonsils Main function is to trap pathogens. Whether its through the nose or mouth

Lymphatic System Spleen -Produces leukocytes and antibodies -Destroys old erythrocytes (old red blood cells) -Stores erythrocytes for release in cases of excessive bleeding -Destroys thrombocytes (platelets) -Filters metabolites and waste from body tissue

Lymphatic System The Thymus Early in life it produces antibodies and lymphocytes It is replaced by the lymph nodes when the system matures Helps to fight infection Problems in the Lymphatic

System Adenitis Inflammation or infection of the lymph nodes Occurs when large quantities of dangerous substances enter the nodes such as cancer cells or pathogens and infect the tissue Symptoms include: fever, and swollen painful nodes If untreated can lead to abscess of the node Treatment includes antibiotics and warm

compress Abscess may require incise or draining of the node Problems in the Lymphatic System Hodgkins Disease Chronic Malignant Disease of the lymph nodes Most common form of lymphoma (tumor of the lymph tissue)

Symptoms include: pain and swelling of nodes, fever, night sweats, weight loss, fatigue, and pruritus (itching) Treatment is chemotherapy and radiation therapy Problems of the Lymphatic System Lymphangitis Inflammation of the lymphatic vessels

Results from infection within the extremity Symptoms include: red streak running up the arm from source of infection, fever, chills, tenderness, pain Treatment includes antibiotics, rest elevation of affected part, warm moist compress Problems of the Lymphatic System Splenomegaly

Enlargement of the spleen Results from: abnormal accumulation of RBC, mononucleosis, and cirrhosis of the liver Symptoms include: swelling and abdominal pain, anemia due to destruction of RBCs, leukopenia or low WBC count and Thrombocytopenia or low platelet count If spleen ruptures then hemorrhage and shock can lead to death If underlying cause cannot be flushed out then

splenectomy is performed. (Removal of Spleen) Problems of the Lymphatic System Tonsillitis Inflammation or infection of the tonsils Usually involves the pharyngeal and palatine tonsils Symptoms include: throat pain, dysphagia, fever, white or yellowish spots on the tonsils, swollen

lymph nodes near the mandible Treatment: Antibiotics, warm throat irrigations, rest, and analgesics for pain Chronic infections or enlargement that causes obstruction are indications for tonsillectomy

Recently Viewed Presentations

  • Handbook of Literary Terms

    Handbook of Literary Terms

    Patricia MacLachlan wrote the book Sarah, Plain and Tall. The book Sarah, Plain and Tall was written by Patricia MacLachlan. ... Jill is the most tallest member of our family. nonstandard standard Jill is the tallest member of our family....
  • Hall of Fame…Hall of Shame

    Hall of Fame…Hall of Shame

    China project was a new project so I didn't mind the copy/paste for your first time… BUT now you have to get in the habit of properly citing because you will be using databases and books that don't allow you...


    Randall, MD. Anne . Kirchhoff, PhD, MPH. ... We identified all survivors (≥ 5 years from diagnosis) of malignant bone tumors and STS diagnosed in Utah from 1973-2005. Limited to age < 21 years old at diagnosis and currently ages...


    Ten Principles of Economics Economy - "oikonomos" (Greek) "One who manages a household" Household - many decisions Allocate scarce resources Ability, effort, and desire Society - many decisions Allocate resources Allocate output * Ten Principles of Economics Resources are scarce...
  • Amino Acids Proteins, and Enzymes

    Amino Acids Proteins, and Enzymes

    * Amino Acids Amino acids are the building blocks of proteins contain a carboxylic acid group and an amino group on the alpha ( ) carbon are ionized in solution each contain a different side group (R) * Examples of...
  • World War I

    World War I

    World War I: The Great War Battles to 1917 The Trenches TRENCH WARFARE Trench Warfare: Terrible Living conditions Trench foot Over the top No Man's Land New Weapons Bayonet Barbed Wire Flamethrower Mortars Machine Gun Poison Gas Tanks Zeppelins Airplanes...
  • B What is the difference between a point

    B What is the difference between a point

    Angle ABC and Angle x form a straight angle. x is an exterior angle. Angle CAB + Angle ACB + Angle ABC = 180 degrees. 14 + 30 + ? = 180. 136. 44. 180. Turn to page S.75. Complete...
  • Tools of Science - Weebly

    Tools of Science - Weebly

    Tools of Science Metric System Microscope The Metric System International system of measurement Used to measure Length Meter Volume Liter Mass Gram Temperature Celsius Metric Conversions Kilo Hecto Deca UNIT Deci Centi Mili 103 102 101 10-1 10-2 10-3 Start...