Author Question: Neuronal communication is a two-step process. In the second step, which takes place between two ... (Read 237 times)

jerry coleman · **on:** Jun 19, 2018

Neuronal communication is a two-step process. In the second step, which takes place between two neurons, what does the arrival of an action potential at the axon terminal of the first neuron signal?

a. The synthesis of neurotransmitters by specialized enzymes
b. The uptake of neurotransmitters from the extracellular space
c. The enzymatic breakdown of residual neurotransmitters
d. The release of neurotransmitters into the extracellular fluid

Question 2

Following a spinal cord injury, formation of the ____ prevents neuronal regeneration in the ____.

a. blood-brain barrier, central nervous system
b. blood-brain barrier, peripheral nervous system
c. scar tissue from glia; central nervous system
d. scar tissue from glia; peripheral nervous system