Psychology 101 - General Psychology » Summer 2022 » The parts of a neuron

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Question #1
soma (cell body)
A.   causes the release of neurotransmitters once the signal reaches here
B.   contains the DNA or genetic material of the cell
C.   insulates the axon to help create a more efficient signal
D.   receiving end of the neuron
E.   signal that moves down the axon
Question #2
dendrites
A.   receiving end of the neuron
B.   insulates the axon to help create a more efficient signal
C.   causes the release of neurotransmitters once the signal reaches here
D.   signal that moves down the axon
E.   contains the DNA or genetic material of the cell
Question #3
axon terminals
A.   insulates the axon to help create a more efficient signal
B.   signal that moves down the axon
C.   contains the DNA or genetic material of the cell
D.   receiving end of the neuron
E.   causes the release of neurotransmitters once the signal reaches here
Question #4
myelin
A.   insulates the axon to help create a more efficient signal
B.   contains the DNA or genetic material of the cell
C.   receiving end of the neuron
D.   signal that moves down the axon
E.   causes the release of neurotransmitters once the signal reaches here
Question #5
action potential
A.   insulates the axon to help create a more efficient signal
B.   receiving end of the neuron
C.   signal that moves down the axon
D.   causes the release of neurotransmitters once the signal reaches here
E.   contains the DNA or genetic material of the cell
Question #6
The cell body receives information from the dendrites, and then decides whether it was sufficient enough information to send the information down the axon or not. How does it know whether it should send the information or not?
A.   the input received by the cell body is inhibitory
B.   it always sends information down the axon
C.   if the input received is chemical, then it sends information
D.   the input received by the cell body is excitatory
Question #7
The brain is often described as having two distinct colors - white matter and gray matter. What is responsible for giving brain matter these two colors?             
A.   white matter is a result of a large group of synaptic connections while gray matter is less dense
B.   white matter is made up of myelinated axons while gray matter including unmyelinated parts
C.   the "white" color is a result of living cells while the "gray" matter is because of dead cells
Question #8
Although not discussed in the video, GLIAL CELLS are also important cells in our nervous system. Glial cells are the support system for the neurons. One important job they have is to produce myelin that helps the action potential travel more efficiently. What are they also responsible for (according to your textbook)?
A.   All choices are correct
B.   glial cells "tell" the neuron whether to create an action potential
C.   glial cells take away the waste products of neurons
Question #9
According to the textbook, we have roughly three times more glial cells than neurons.
A.   False
B.   True
Question #10
When the "signal" (or action potential) reaches the axon terminals, it can cause the release of neurotransmitters. The neurotransmitters are released out of the axon terminal into a space between the "exiting" neuron and the potential receiving neuron. The microscopic gap between the neurons is called what?
A.   synaptic gap (synapse)
B.   neurotransmitter cleft
C.   none of the responses are correct
D.   enzymatic gap

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