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Daniel
Week 11 Lymphatic and Immune Systems
| Question | Answer |
|---|---|
| What is the main function of the lymphatic system? | To return excess interstitial fluid to the bloodstream and help defend the body against pathogens. |
| What are lymph nodes responsible for? | Filtering lymph and housing immune cells like lymphocytes and macrophages that destroy pathogens. |
| What is the spleen’s main function in immunity? | It filters blood, removes old red blood cells, and activates immune responses. |
| What is lymph? | A clear fluid that contains water, proteins, and immune cells, transported through the lymphatic vessels. |
| What are T cells? | White blood cells that manage immune responses and destroy infected or abnormal cells. |
| What are B cells? | Lymphocytes that produce antibodies to target and neutralize pathogens. |
| What does the thymus do? | It allows T cells to mature and become immunocompetent functional. |
| What is innate immunity? | The body’s first line of non-specific defense, including skin, inflammation, and macrophages. |
| What is adaptive immunity? | A specific immune response that creates memory cells and becomes stronger after each exposure. |
| What is an antigen? | A foreign molecule like bacteria, virus proteins, or toxins. |
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