Lymphatic

• Lymphatic System


  Important roles: Maintain body's fluid balance, Remove waste and toxins, Lipid Absorption, Support the immune system

  
• Lymph


  • Clear fluid that contains white blood cells that circulates throughout the body
• Lymphatic vessels


  • Thin tubes that carry lymph and white blood cells through the lymphatic system
• Lymph nodes


  • Small bean-shaped structures that filter substances that travel through the lymphatic fluid
• Lymphatic capillaries


  • Made up of a single layer of endothelial cells and are highly permeable, allowing fluids, solutes and cells to enter
• Lymphatic vessels


  Transport lymphatic fluid from the capillaries to the lymph nodes and eventually back into the bloodstream
• Three factors that cause compression of lymphatic capillaries

  • Contraction of surrounding skeletal muscle during activity
  • Periodic contraction of smooth muscle in the lymphatic vessel wall
  • Pressure changes in the thorax during breathing
• Lacteals


  Lymphatic vessels located in the lining of the small intestine
• Chylomicrons


  Lipoproteins produced by the small intestine that aid in the digestion and absorption of dietary fats
• Lymphocytes


  A type of white blood cell that plays an important role in fighting off infections and disease
• 1. lymphocytes (T cells)


  • Control the body's immune system
• Types of T cells

  • Helper T cells
  • Cytotoxic T cells
  • Regulatory T cells
• Autoimmune disorders


  Group of conditions in which the body's immune system attacks its own healthy tissues and organs, causing inflammation and damage
• Autoimmune disorders


  • Psoriasis
  • Type 1 Diabetes
• 1. lymphocytes (B cells)


  • Responsible for the production of antibodies
• Types of B cells

  • Memory B cells
  • Plasma cells
• Lymphoma


  Type of cancer that develops when lymphocytes become abnormal and start growing and dividing uncontrollably
• Types of lymphoma


  • Hodgkin's lymphoma
  • Non-Hodgkin's lymphoma
• Lymphatic system


  • Consists of a network of lymph vessels, lymph nodes, and lymphoid organs
• Lymphoid organs


  • Spleen
  • Thymus
  • Tonsils
• Tonsils


  • Collections of lymphatic tissue located in the throat that help to trap and remove bacteria and other pathogens that enter the body through the nose and mouth
• Types of tonsils


  • Palatine Tonsils
  • Pharyngeal Tonsils
  • Lingual Tonsils
• Spleen


  • Located in the upper left side of the abdomen, just below the diaphragm and behind the stomach. Important roles: Filter and remove old/damaged red blood cells from the bloodstream, Produce and store white blood cells, Store platelets, Reservoir of blood in case of emergency

  
• Thymus


  • Glandular organ located in the upper chest, just behind the sternum and between the lungs. Important role: Development and maturation of T lymphocytes
• Myasthenia Gravis


  Chronic autoimmune disorder characterized by weakness and rapid fatigue of any of the muscles under voluntary control
• Most common symptoms of Myasthenia Gravis

  • Drooping eyelids (Ptosis)
  • Double Vision (Diplopia)
  • Muscle weakness (rapid/early fatigue)
  • Trouble swallowing/pronouncing words
• Lymphatic System


  • Maintain body's fluid balance
  • Remove waste and toxins
  • Lipid Absorption
  • Support the immune system
• Lymph


  Clear fluid that contains white blood cells that circulates throughout the body
• Lymphatic vessels


  Thin tube that carries lymph and white blood cells through the lymphatic system

  
• Lymph nodes


  Small bean-shaped structure that filters substances that travel through the lymphatic fluid
• Lymphatic capillaries


  • Made up of a single layer of endothelial cells and are highly permeable, allowing fluids, solutes and cells to enter
• Lymphatic vessels


  Transport lymphatic fluid from the capillaries to the lymph nodes and eventually back into the bloodstream

  
• Three factors that cause compression of lymphatic capillaries

  • Contraction of surrounding skeletal muscle during activity
  • Periodic contraction of smooth muscle in the lymphatic vessel wall
  • Pressure changes in the thorax during breathing
• Lacteals


  Lymphatic vessels that are located in the lining of the small intestine
• Chylomicrons


  Lipoproteins that are produced by the small intestine that aids in the digestion and absorption of dietary fats
• Lymphocytes


  A type of WBC that plays an important role in fighting off infections and disease
• Types of T cells

  • Helper T cells
  • Cytotoxic T cells
  • Regulatory T cells
• Autoimmune disorders


  Group of conditions in which the body's immune system attacks its own healthy tissues and organs, causing inflammation and damage
• Autoimmune disorders


  • Psoriasis
  • Type 1 Diabetes
• Types of B cells

  • Memory B cells
  • Plasma cells