Natural killer (NK) cells are naturally occurring leukocytes that nonspecifically destroy bacteria-infected cells and cancer cells
a. True
b. False
Indicate whether the statement is true or false
False
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The palatine tonsils
A. are really lymph nodes in disguise. B. are located in the nasopharynx. C. are located at the junction of the oral cavity and pharynx. D. are located superior to the palate. E. interfere with breathing when enlarged.
A child is born with a congenital disease that results in total loss of B cells. Which of the following would be a consequence of this immunodeficiency?
A. Inability to form any type of memory cell B. No antigens on the cells C. Lack of antibody formation D. No lymphokine production E. Nonfunctioning complement system
"Somatosensory" does not refer to sensory signals from ________
A) proprioceptors B) the skin C) bones and muscles D) the viscera E) joints
What factor affects hair texture?
A. The length of the shaft B. The amount of keratin in the hair shaft C. The color of the hair shaft D. The shaft's cross-sectional shape