Flashcards in lymphatic and immune system Deck (39):
functions of the lymphatic system?
-Return excess fluid to blood stream
-Absorb fat from intestines
-Protect by filtering and destroying invaders
Clear, transparent fluid with Antibodies and lymphocytes
where are Lymphatic vessels located?
throught the body
function of Lymphatic vessels?
allows Lymph to flows due to contractions of skeletal muscles then Returns to venous bloodstream
what Lymphatic capillaries?
thin walls that allow lymph in tissue to flow
what are lacteals?
Pick up/Absorb digested fats or lipids from capillaries in small intestines.
what are Lymph Nodes?
Masses of lymphatic tissue that filter lymph and remove impurities, traps microorganisms and produce lymphocytes.
whats the Flow of Lymph?
1.) Capillaries pick up lymph in tissues
2.) join to form larger lymphatic vessels
3.) Pass through lymph nodes
4.) Join to form larger lymph vessels
Right Lymphatic Duct functions?
-Receives all lymph from right upper body
-Empties into Right Subclavian Vein
location and function of Cisterna Chyli?
-At start of thoracic duct
-Stores purified lymph
Lymphatic Tissue examples?
tonsils, spleen, thymus
Lymphatic Tissue of tonsils locations?
-Palatine, Located on each side of soft palate
-Pharyngeal (Adenoids), Located in nasopharynx
-Lingual, Located on back of tongue
whats the spleen?
Largest organ of the lymphatic system
function of spleen?
-Produce leukocytes (WBCs)
-Destroy thrombocytes (platelets)
location of Thymus?
Located in center of chest, above heart
functions of the thymus?
-Produces antibodies/Helps fight infection
-Manufactures lymphocytes (WBCs)
Diseases of Lymphatic System?
Splenomegaly, Tonsilitis, Hodgkin’s Disease, Metastasis
Enlargement of spleen
whats tonsilitis? treatment?
-inflammation or infection of tonsils
-Treated with antibiotics/throat gargles
whats Hodgkin’s Disease? treatment?
-Chronic malignant disease of lymph nodes
-Treated with chemotherapy/radiation
Spread of cancer cells via the lymphatic system
whats the Immune System made up of?
specialized cells and organs
whats the immune systems function?
Provides protection against bacterial and viral infections, destroys cancer cells and foreign substances
what happens if immune system is weak?
the body’s ability to defend itself also weakens and
pathogens grow and flourish in the body.
whats an antigen?
A foreign substance
examples: Bacteria, virus, allergens
whats an antibody and its function?
-What body produces in response to antigen
-it protects against disease
whats immune response?
the body’s reaction to antigen exposure and the
body’s attempt to keep us free from disease.
whats biological immunity?
Protection from disease/Body’s ability to resist infection
Bone Marrow location and functions?
-located in the lymphatic system structures
-Provide a specific immune response to infectious diseases and Produce B and T cells
B cell location and function?
-located in the in bone marrow
-Produce antibodies against an antige
T Cells location and function?
-located in the thymus gland
- attack the antigens
whats Nonspecific Immunity?
Antigen that Invades the Body, mobilize the lymphatic system causing a Inflammatory Respons
whats specific Immunity?
were Body has previously encountered the antigen
Immune system remembers the antigen
Natural Passive immunity ?
From mother to child before birth/through breast milk
Natural Active/Acquired immunity?
Develop antibodies during an actual attack of infectious disease
Artificial/Acquired Passive immunity?
Acquire immunity after receiving antiserum/antitoxin that has antibodies (IgG)`
Artificial/Acquired Active immunity?
Acquire immunity artificially through vaccinations (immunizations)
cells that carry out processes, eating other cells