Multiple Choice
L-type calcium channels, such as those found in the soma of leech Retzius neurons, are especially suitable for extrasynaptic signaling because they
A) open only after a lag of up to one second.
B) have a very high depolarization threshold for opening.
C) are permeable to magnesium as well as calcium.
D) inactivate rapidly after opening.
E) are not easily inactivated.
Correct Answer:

Verified
Correct Answer:
Verified
Q1: A primary function of perivascular pumping is
Q3: Experiments on extrasynaptic transmission using amperometry have
Q4: A scientist is studying leech behavioral neurobiology.
Q5: As a general rule, the mechanisms for
Q6: The neurotransmitter responsible for 'tuning' the magnitude
Q7: What is the function of the ependymal
Q8: Tannic acid can be added to neurons
Q9: Neurons that release a neurotransmitter extrasynaptically<br>A) do
Q10: The three regions into which neurotransmitters are
Q11: The exchange of molecules across the ependymal