BIOL 3240 Exam 2 Update

BIOL 3240 Exam 2
The process whereby a neuron communicates with another cell, which can be another
neuron or a muscle cell
Synaptic transmission
Who was the first person to coin the term "synapse?"
Charles Sherrington
The region between pre and post synaptic cells
zone of apposition\
(chemical/electrical) synapses are used to generate rapid and stereotyped depolarizing
signals
Electrical
(chemical/electrical) synapses are capable of variable signaling, mediating either
excitatory or inhibitory signals
Chemical
Chemical synapses can mediate excitatory or inhibitory signals and changes in ____
properties to the postsynaptic cell
Electrical
What protein helps stabilize synapses and the pre/post synaptic cells at this junction?
Connexin
In an electrical synapse, what is the distance between pre and postsynaptic cell
membranes?
4 nm
(chemical/electrical) synapses have cytoplasmic continuity between the pre and
postsynaptic cells
Electrical
What is the distance between pre and post synaptic cell membranes in a chemical
synapse?
20 to 40 nm
What is the agent of transmission in an electrical synapse?
Ion current
The structural cellular component responsible for passing the agent of transmission in
an electrical synapse
Gap junction