CH 21 & 22 Part 1 Flashcards
What % of fluid goes to the lymphatic system?
15%
What % of fluid is reabsorbed?
85%
What is lymph?
Fluid that leaves capillaries and is not reabsorbed
What are lymphatic vessels found next to?***
Blood vessels
Where does fluid in lymph eventually go?***
Back into blood circulation
What do lymphatic capillaries have to prevent backflow and cooling?
Valves
Where do T-cells go to mature?
Thymus
Where do B-cells go to mature?
Bone marrow
The thymus is larger in?
Children
What causes swollen lymph nodes when sick?
Lymphocytes proliferate and cause an immune response
Largest lymphatic organ is the?
Spleen
Which immunity is present at birth?
Innate
Which immunity must be acquired?
Adaptive
Which immunity is not specific and not smart?
Innate
Which immunity is very specific and very smart?
Adaptive
Innate immunity examples? (2)
- Skin
2. Mucosal membranes
Adaptive immunity examples?
T & B lymphocytes
What is a down side to adaptive immunity?
Takes several days to activate
Function of innate immunity?
Prevent entrance of harmful substances
What is the first line of deffence?
Skin and mucosal membranes
What is the second line of defence?
Internal process
