The study guide provides a list of suggestive topics that are considered high-yield, nuts-and-bolts, no-frills, and will
show up on the exam. It is not necessarily exhaustive of everything that will be on the exam. Anything on the
PowerPoint lectures is fair game. Questions on the exam mainly come the powerpoint lectures.
Additionally, please be aware that many questions, but not all, on the exam may test your critical thinking on concepts
we covered in class. An example of a topic that WILL be on this first exam is the excitation-contraction coupling. This
will test not only your knowledge of muscle anatomy, but also how it functions as a machine to contract the tissue.
What event creates action potential signal on the sarcolemma?
a) diffusion of K+ into the axon terminal
b) diffusion of Ca2+ into the axon terminal
c) diffusion of K+ out the motor end plate
d) diffusion of Na+ into the motor end plate
e) diffusion of Na+ out of the axon terminal
, Answer key: D. First, you must know the anatomy of what is the axon terminal, sarcolemma, and motor end plate.
Second, you need to know the physiology that an action potential is formed by allowing a positive ion into the cell.
Without UNDERSTANDING how they are connected together, you will not be able to answer this question.