phagocytes D. Tissue injury releases chemicals (histamine) that trigger innate d

Question

phagocytes D. Tissue injury releases chemicals (histamine) that trigger innate defenses E Phagocytes engulf bacteria and dead cell material Step 4 Step5 QUESTION 9 What is the name of those white blood cells that recognize and kill virus-infected cells by the release of certain chemicals? QUESTION 10 Which of the following lymphatic organs can be described by the following functions . Stores white blood cells .Cleanses lymph of bacteria, cell debris, etc Collects large number of white blood cells if infection is present lymph node spleen tonsils thymus QUESTION 11 What is the term used to describe the short-lived clones of B-cells that secrete antibodies after specific binding of an antigen? Screens

Explanation / Answer

9. Natural killer cells.

NK cells are a type of lymphocyte that recognize and kill virus-infected cells.

10. Lymph nodes.

Lymph nodes store WBCs, and filters lymph of bacteria and debris, and collects WBCs during infection and become swollen and tender.

11. Plasma cells.

Some clones of B cells differentiate into plasma cells which are short-lived and secrete antibodies.

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