Lymphatic And Immune System Flashcards
What is lymph?
Clear watery fluid that surrounds body cells and flows in a system of lymph vessels throughout the body
Does lymph contain platelets ?
No
What type of leukocytes are found in lymph?
Lymphocytes and monocytes
Formation of lymph fluid
Fluid that gets filtered out from capillaries enters the interstitial spaces. This becomes the interstitial fluid. When interstitial fluid accumulates, it is picked up by the lymphatic capillaries. Now it is called lymphatic fluid. From lymphatic capillaries, lymphatic fluid then moves into lymphatic vessels and deposits and flows through lymph tissues and then to lymph nodes, which then again empty into the blood stream.
Which lymphocyte produces antibody?
B-lymphocyte
Which lymphocyte attack against foreign body?
T-lymphocyte
Lymph cells are produced where ?
Lymph nodes
Location of lymph nodes
Cervical
Axillary
Trachea
Mediastinal
Initial
Femoral
What are adenoids?
Lymph tissue in the nasopharynx
Where does lymph drain into?
Right lymphatic duct
Thoracic duct
Majority of lymph is drained by which vessel?
Thoracic duct
Thoracic duct drains lymph from which parts of the body?
Lower body
Left side of head
Right lymphatic duct drains lymph from which parts of the body?
Right side of head and chest
Graveyard of rbc
Spleen
Activation of B-lymphocytes takes place in which gland organ?
Spleen
Blood is stored in which lymphatic organ?
Spleen
Which lymphatic organs becomes smaller with age ?
Thymus gland
Where does activation of T-lymphocyte takes place ?
Thymus gland
What is immunity?
Body’s ability to resist foreign organism and toxins that may damage the tissues
What is natural immunity ?
Genetic predisposition present in the body at birth that fights against toxins and foreign bodies
Types of immunity
Natural / innate immunity
Acquired active
Acquired passive
Immunization with an actually disease is an example of what?
Acquired active natural immunity
Vaccine is an example of what immunity?
Acquired active artificial immunity
Milk is an example of what immunity?
Acquired passive natural immunity
Transplant is an example of what immunity?
Acquired passive artificial immunity
What are immunoglobulin ?
Antibodies produced by plasma cells
Which cells are involved in humoral immunity?
B-lymphocytes
Which is the most abundant immunoglobulin?
IgG
Which immunoglobulin crosses placenta?
IgG
Which immunoglobulin causes allergic response ?
IgE
What are the types of immunoglobulins?
IgA IgG igE IgM IgD
Which cells are inclined in cell mediated immunity ?
T-lymphocytes
Which T-cell directly fight on the foreign body?
T8 cells
Which T cells are called helper cells and promote antibody production ?
T4 cells
What are the types of T-lymphocytes ?
T8
T4
Cytokines - interferons, interleukins
Suppressor cells
Thymoma?
Tumor of thymus gland
Myeloma characteristics?
Overproduction of immunoglobulins
Types of lymphoma and characteristics ?
Hodgkin’s lymphoma- reed sternburg cells
Non Hodgkins lymphoma- no reed sternburg cells
Test that detects presence of AIDS virus antibodies
ELISA
HIV affects which type of T lymphocytes to disrupt the cell mediated immunity?
T8
Where is palatine tonsil located ?
Near oropharynx
