EEOB 2520 Exam 4 Practice Questions
and Answers
The graded potentials starting each myelinated section of axon ( i.e, end of each node) are ___ in size.
The first action potentials at the start of each node (i.e, just after a myelinated section) are ___ in size. -
ANSWER-Identical - identical
...
During anatomy lab, you dissect a group of axons in the cadaver's right wrist. You correctly tell your lab
partner that you are observing ___ cells and parts of ___ neurons. - ANSWER✔✔-Schwann - afferent or
efferent
A correct series of events during an action potential is - ANSWER✔✔-Depolarization, threshold,
repolarization
Sodium influx, potassium outflux
During an action potential, which type of channels are open at the peak (i.e., highest amplitude) of the
Vm? - ANSWER✔✔-The voltage-gated sodium channels
The voltage-gated potassium channels.
Astrocytes are physically ___ than neurons and cause ___ neurotransmitters to be available for the
neurons. - ANSWER✔✔-Smaller - less
Cell B's cytosol is observed to be more negatively charged than the surrounding interstitial fluid. A
mechanically-gated sodium channel is open in Cell B. Assuming a typical sodium distribution, sodium
would have a net movement ___ Cell B. - ANSWER✔✔-Into
Page 2/5
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Emillect. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
