Place the following events that occur at the vertebrate neuromuscular junction in the correct order.IDepolarization of the muscle fiber membrane.IIGeneration of an action potential in the neuron.IIIStimulation of Ca2+ entry into the neuron.IVRelease of acetylcholine into the synapse.
A. IV, II,III, I
B. III, II, IV, I
C. I, III, IV, II
D. I, II, III, IV
E. II, III, IV, I
Answer: E
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a. phosphates b. sugars c. bases d. genes e. ribosomes
For general clinical descriptions, which of the following planes is used as one of the planes to define four quadrants of the abdominal cavity?
(A) subcostal (B) transtubercular (C) midclavicular (D) transumbilical (E) midaxillary
Figure 23.7
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Refer to the accompanying figure for questions 11 and 12.
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