click below
click below
Normal Size Small Size show me how
Term 4b
Immunity - 3rd line of defense
Question | Answer |
---|---|
Specific Immunity involves a ............ response to the ........... ............. to that particular ............? | Specific immunity involves a specific response to the immune system to that particular infection |
What does specific immunity result in? | Adaptive or Acquired Immunity |
Long lasting? | Yes, this type of immunity is generally long lasting |
When is the 3rd line of defense initiated? | When the foreign micro-organism has moved past the 1st and 2nd lines of defense and entered the body. |
What does the 3rd line of defense involve? | Involves the white blood cell lymphocyte. |
What do lymphocytes do? (3) | Recognize invading particles, react to the invasion and remember that particular type of invasion. |
What happens if the same infection occurs again? | The response occurs more rapidly. |
Where do B cells mature? | In the bone marrow |
Where do T cells mature? | In the Thymus |
Do they both make antibodies? | B cells do (specific antibodies) but T cells don't |
What are B cells primarily responsible for? | Humoral Immunity |
What is Humoral Immunity? | When B cells recognize antigens or pathogens that are circulating the lymph or blood. |
What are T cells primary responsible for? | Cell Mediated Immunity |
What is Cell Mediated Immunity? | When T cells act against virus infected cells, cancerous cells and foreign cells. |
What binds together in B cells? | Antibodies bind to Antigen |
What is this called? | An antibody-antigen complex |
What happens to the antibody-antigen complex? | It is attacked by phagocytes |
What do helper T cells do? | Help B cells |
Help B cells do what? | Recognize foreign antigens and stimulate B cell reproduction. |
What do Cytotoxic C cells do? | Kill virus infected cells. |
Where are both these cells produced? | In the bone marrow |
Both of these cells can ............... between ........ and ...... .......... | distinguish between self and non self |
Both are ......... cells | memory cells |
How do both of these travel? | Via the lymphatic vessels (lymph0 or bloodstream (blood) |
Part of the ..... ........ of .............. and ............... ................... | 3rd line of defense and specific immunity |
How many different types of B cells and T cells? | Many different types |
They .......... rapidly after ............. specific ............... | They reproduce rapidly after encountering specific antigens. |