Which of the following is NOT true of G-protein complex action?
A. Stimulates a cell by opening ion channels in the plasma membrane
B. Stimulates a cell by means of intracellular chemical signals
C. Acts as an intermediate between a receptor and other cellular proteins
D. Stimulates a cell by means of extracellular chemical signals
E. Stimulates a cell by activating enzymes associated with the plasma membrane
Answer: D
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What lobe of the brain is situated most posteriorly (back of the head)?
a. parietal b. occipital c. temporal d. posterior e. cerebral
All of the following are true statements EXCEPT:
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The joint between the trapezium and metacarpal bone of the thumb is an example of a ________ joint
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