1.) A terminal knob is a form many axonal branch endings assume within the CNS.
ID: 49173 • Letter: 1
Question
1.) A terminal knob is a form many axonal branch endings assume within the CNS. Consider the terminal knobs within an -motor neuron’s dendritic field. To whom to these terminal knobs belong?
a.) the motor neuron b.) other neurons that control information output from the motor neuron
2.) Identify the neuronal process from which a neurotransmitter is secreted in response to an action potential.
a.) dendrite b.)axon
3.) What happens when a neuron’s membrane potential approaches -40 mV at the axonal hillock?
a.) more likely to transmit an action potential b.) less likely to transmit an action potential
Explanation / Answer
1.
b.) Other neurons that control information output from the motor neuron
synaptic knob changes the action potential which is carried by axons into a message.
2.
b.) axon
it transmits messages from cell body to the opposite dendrites.
3.
b.) less likely to transmit an action potential
since threshold potential is -55mv
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