Which of these is NOT a function of lymph nodes?
A) house lymphocytes and macrophages
B) filter lymph
C) produce red blood cells
D) produce lymphocytes
Answer: C) produce red blood cells
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The ________ bones make up the ankle and posterior foot.
Fill in the blank(s) with the appropriate word(s).
Within a neuron, summation of all incoming signals occurs at the ______.
A. first node of Ranvier B. trigger zone C. terminal arborization D. dendrites
Clonal selection occurs when:
A) plasma cells secrete antibodies. B) B cells undergo rapid mitosis. C) B cells are activated. D) B cells differentiate into plasma cells and memory B cells.
Which of the following triggers the extrinsic pathway of coagulation?
A. Calcium B. The intrinsic and extrinsic pathway of blood clotting are BOTH begun by damaged tissues. C. Damaged tissues D. Platelets