WorksheetsNeuron Structure and Action Potential
Total questions: 19
Worksheet time: 10mins
What is the name of the neuron structure at location [A]?
Nodes
Axon
Myelin
Dendrites
What is the name of the neuron structure at location [B]?
Nodes
Axon
Cell Body
Dendrites
What is the name of the neuron structure at location [C]?
Nucleus
Axon
Cell Body
Myelin Sheath
What is the name of the neuron structure at location [D]?
Terminal Button
Axon
Soma
Myelin
What is the name of the neuron structure at location [E]?
Axon Terminal
Axon
Soma
Myelin
The function of the myelin sheath is to
receive incoming nerve impulses from adjoining neurons.
insulate the axon, speeding up nerve impulse transmission
Hold neurotransmitters until they are released into the synapse
Provide an area for nerve impulses to 'jump' between, speeding up transmission
The function of the dendrites are to
receive incoming nerve impulses from adjoining neurons.
insulate the axon, speeding up nerve impulse transmission
Hold neurotransmitters until they are released into the synapse
Provide an area for nerve impulses to 'jump' between, speeding up transmission
The function of the axon terminal is to
receive incoming nerve impulses from adjoining neurons.
insulate the axon, speeding up nerve impulse transmission
Hold neurotransmitters until they are released into the synapse
Provide an area for nerve impulses to 'jump' between, speeding up transmission
The function of the nodes of ranvier is to
receive incoming nerve impulses from adjoining neurons.
insulate the axon, speeding up nerve impulse transmission
Hold neurotransmitters until they are released into the synapse
Provide an area for nerve impulses to 'jump' between, speeding up transmission
Which of these is not one of the main types of neurons?
Interneuron
Motor Neuron
Spinal Neuron
Sensory Neuron
What path does a reflex arc follow?
Sensory Neuron - Motor Neuron - Interneuron
Motor Neuron - Sensory Neuron - Interneuron
Motor Neuron - Interneuron - Sensory Neuron
Sensory Neuron - Interneuron - Motor Neuron
Which of these is NOT a feature of a glial cell?
Glue of the nervous system, supports neurons
Can regenerate via mitosis
Nourishes neurons
Responsible for nerve impulse transmission
Which of these is the resting membrane potential for a cell?
+40 mV
-70mV
-55mV
0mV
Which of these is the threshold voltage a cell has to cross to initiate an action potential?
+40 mV
-70mV
-55mV
0mV
During depolarization, Na+ ions flow in what direction?
Down their concentration gradient, out of the cell
Down their concentration gradient, into the cell
Against their concentration gradient, out of the cell
Against their concentration gradient, into the cell
True or False: during the refractory period, another action potential cannot occur.
True
False
Movement of what ions is responsible for repolarization?
Na+
K+
Cl-
Ca2+
True or False: Excitatory neurotransmitters increase the resting membrane potential above -70mV, so it is easier for an action potential to occur.
True
False
True or False: Inhibitory Neurotransmitters decrease the resting membrane potential below -70mV, making it more difficult for an action potential to occur.
True
False
