Multiple Choice
What happens to an action potential at an excitatory synapse?
A) The postsynaptic neuron depolarizes the presynaptic cell membrane.
B) The presynaptic neuron increases the permeability of the subsynaptic membrane of the postsynaptic cell to both Na+ and K+.
C) The presynaptic neuron increases the permeability of the subsynaptic membrane of the postsynaptic cell to K+ only.
D) A small hyperpolarization occurs.
Correct Answer:
Verified
Correct Answer:
Verified
Q53: A single neuron may be presynaptic to
Q61: Which organelles contain oxidative enzymes<br>A)peroxisomes and lysosomes<br>B)mitochondria
Q135: Match the ions, labelled a. through d.,
Q151: Myelinated fibres conduct impulses about _ times
Q306: Which of the following is NOT a
Q346: Which of the following statements about membrane
Q348: Which of these statements correctly describes neuropeptides?<br>A)They
Q350: Match the result, labelled a. or b.,
Q352: Match the ions, labelled a. through d.,
Q469: Facilitated diffusion is passive and does not