Which of the following is evidence that the arthritis afflicting children in Lyme, Connecticut, was due to bacterial infection?
A) treatable with penicillin
B) not contagious
C) accompanied by a rash
D) affected mostly children
E) transmitted by ticks
A
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Which receptor is associated with the perception of pain?
A. thermoreceptor B. chemoreceptor C. nociceptor D. photoreceptor
Inflammation begins when mast cells in tissue release __________, which increases blood flow and
also makes capillaries leaky to phagocytes and plasma proteins. Fill in the blank(s) with the appropriate word(s).
Which neurons integrate information coming into and out of the central nervous system?
a. afferent neurons b. motor neurons c. interneurons d. efferent neurons e. sensory neurons
vA physician using a microscope to examine suspect cells in biopsy tissue would expect to find each of the following characteristics in metastatic cancer cells except
A) poorly differentiated cells. B) many dividing cells. C) perfectly spherical nuclei. D) a poorly defined tumor boundary. E) a high nucleus to cytoplasmic volume ratio.