Lymphatic System Notes Flashcards
What is included in the lymphatic system
Lymph vessiles
Tonsils
Lymph nodes
Thymus
Spleen
What is Lymph fluid
Yellow, colourless and made of interestinal fluid
What are the functions of the lymphatic system
Balence fluids in the body
Protect the body against infections
Where do white blood cells mature
Lymph nodes
Do aintbodies have a specific target or non specific
Yes
Do macrophages have specfic targets or no specific
No
What is the job of macrophages
Break down large pathogens
Where are lymph nodes locacted
In the neck
What is a pathogen
Anything that causes disease
What is the first line of defence
Skin, mucus, celia, enzymes in tears.
What is the second line of defence
Macrophages non specific defence against a variety of pathogens
What is the third line of defence
Specific defence against specific pathogens with antibodies produced
What are some items that lower immunity
Smoking
Stress
Lack of sleep
Alcohol
What is an antibody
Produced by B cells and have a Y shape that target specific antigens
What produce antibodies
B cells produced by plasma
Where do antibodies travel in
Blood plasma
What are antigens
Found on the surface of cells/ pathogens and mark cells. Give identification for T or B cells
Lymphocytes
Are responisble for immune responses
Where do B cells mature
Bone marrow
What is the job of B cells
Produce antibodies
Where do T cells mature
Thymus
What are the job of T cells
Signal attacks
What do antibodies bind to
Antigens, to change viruses shape making them harmless.
What is the first step in getting rid of a pathogen
Macrophages engulf pathogen sending its antigens to the surface.
