Which of the following is/are the most specific internal defense against disease?
a. phagocytes
b. NK cells
c. inflammation
d. T cells
Answer: d. T cells
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The organelles that are the “power plants” of the cell are the:
a. ribosomes b. mitochondria c. Golgi apparatus d. centrioles
Which of the following statements about prostaglandins is true?
A. Thromboxane A2 induces vasodilation. B. Prostaglandins inhibit inflammation. C. Prostaglandin synthesis is blocked by the actions of caffeine. D. Prostaglandins may contribute to asthma.
In a penetrating wound, ________ divide to produce mobile cells that repair the dermis
A) granulation cells B) dendritic cells C) macrophages D) fibroblasts E) muscle cells
A lesion in which structure would cause a person to have an erratic waking/sleeping cycle?
A. Satiety center B. Mammillary nucleus C. Pituitary gland D. Suprachiasmatic nucleus E. Medial geniculate nucleus