EEOB 2520 Exam 4- Questions &
Solutions
Astrocytes are physically ___ than neurons and cause ___ neurotransmitters to be available for
the neurons. Correct Ans-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. Correct Ans-Into
Juno, the bug-eyed Boston Terrier, and her bestie Capone and Oliver regularly try to limit
negative actions of any other dogs in their fenced-in dog park. Juno and her bestie would
correctly be compared to ___ and the dog-park fence to ___. Correct Ans-Microglia -
ependymals
Ion X has a higher concentration outside of Cell A. A channel for X is opened in Cell A's plasma
membrane. The resulting net movement for Ion X will be Correct Ans-Unable to be
determined.
Which is a correct statement about glial cells? Correct Ans-Compared to the neurons, glial
cells are more numerous and smaller
They are extremely important in fetal and early childhood development.
During an overly heated exchange about the utility of analogies in physiology, Kolin punched
Omar but Omar did not respond. This scenario would be analogous to Correct Ans-A graded
potential that does not cause an action potential
Action potential that does not cause a threshold potential.
Solutions
Astrocytes are physically ___ than neurons and cause ___ neurotransmitters to be available for
the neurons. Correct Ans-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. Correct Ans-Into
Juno, the bug-eyed Boston Terrier, and her bestie Capone and Oliver regularly try to limit
negative actions of any other dogs in their fenced-in dog park. Juno and her bestie would
correctly be compared to ___ and the dog-park fence to ___. Correct Ans-Microglia -
ependymals
Ion X has a higher concentration outside of Cell A. A channel for X is opened in Cell A's plasma
membrane. The resulting net movement for Ion X will be Correct Ans-Unable to be
determined.
Which is a correct statement about glial cells? Correct Ans-Compared to the neurons, glial
cells are more numerous and smaller
They are extremely important in fetal and early childhood development.
During an overly heated exchange about the utility of analogies in physiology, Kolin punched
Omar but Omar did not respond. This scenario would be analogous to Correct Ans-A graded
potential that does not cause an action potential
Action potential that does not cause a threshold potential.
