In addition to thyroxine and triiodothyronine, the thyroid gland produces ________.
A) TSH
B) ACTH
C) calcitonin
D) FSH
Answer: C) calcitonin
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A hormone that promotes gluconeogenesis in the liver is
A) aldosterone. B) erythropoietin. C) thymosin. D) cortisol. E) calcitonin.
Action potentials occur when the graded (local) potential
A) becomes more negative. B) reaches zero. C) reaches the threshold. D) remains constant for a considerable period of time. E) causes a hyperpolarization.
The unit of measurement for pressure specifically preferred by many respiratory therapists is
A) mm Hg. B) torr. C) cm H2O. D) All of the answers are correct. E) None of the answers is correct.
If carbon dioxide levels rise in the body, negative feedback mechanisms will trigger
A. an increase in breathing so that carbon dioxide levels decline to the set point. B. a decrease in breathing so that carbon dioxide levels decline below set point. C. a decrease in breathing so that carbon dioxide levels rise to the set point. D. an increase in breathing so that carbon dioxide levels rise further above set point.