Which of the following is not involved with spinal gating of pain signals?
A. Lower motor neurons
B. The reticulospinal tract
C. The spinothalamic tract
D. Nociceptors
E. Second-order neurons
Answer: A
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Axons leaving each olfactory bulb travel along the olfactory tract to reach the olfactory cerebral cortex, portions of the limbic system, and the
A) thalamus. B) superior colliculus. C) pineal body. D) hypothalamus. E) epithalamus.
Which of the following is not an accessory organ of the male reproductive system?
A. gonads B. prostate gland C. scrotum D. seminal vesicle
Articular cartilage found at the ends of long bones serves to:
A) attach tendons. B) produce synovial fluid. C) form the synovial membrane. D) reduce friction and absorb shock.
When normal buffer mechanisms are overwhelmed by excessive numbers of hydrogen ions, which of the following will result?
A. acidosis B. alkalosis C. neither of these