What is the function of dendritic cells within lymph nodes?
A. They initiate replication of macrophages.
B. They conduct signals between activated T-lymphocytes to accelerate the immune response.
C. They collect antigens and present them to T-lymphocytes.
D. They absorb fluid when infected, causing the lymph nodes to swell and become tender to the touch.
E. They secrete lymphatic hormones to stimulate adjacent lymph nodes.
Answer: C
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The most numerous white blood cells are __________.
Fill in the blank(s) with the appropriate word(s).
The lungs eliminate ________ created as a result of cellular metabolism.
A. carbon dioxide B. nitrogen C. energy D. foreign particles
Which structures in capillary beds open to allow the capillaries to perfuse with blood?
A. Thoroughfare channels B. Precapillary sphincters C. Fenestrations D. Postcapillary sphincters E. Metarterioles
A clinical disease that results in an inability to absorb fats will not result in malnutrition.
Answer the following statement true (T) or false (F)