Neuron Structure and Action Potential

What is the main factor that causes the production of electricity in the neuron?

• Temperature of the environment

• Amount of glucose in the blood

• Presence of neurotransmitters

• Difference in ion concentrations

What is the normal state of the cell when it does not transmit the signal?

• Threshold potential

• Depolarization

• Action potential

• Resting potential

What is the difference in charges between inside and outside of the cell called?

• Axon hillock

• Synaptic transmission

• Neurotransmitter release

• Membrane potential

What is the state called when the outside of the membrane becomes negative and the inside becomes more positive?

• Action potential

• Depolarization

• Resting potential

• Threshold potential

What are the parts without myelin in a myelinated axon called?

• Neurotransmitter vesicles

• Axon terminals

• Synaptic clefts

• Nodes of Ranvier

Where do cations pass through the axon membrane in a myelinated axon?

• Cell body

• Nodes of Ranvier

• Axon terminals

• Dendrites

What makes signal transmission much faster in myelinated axons compared to unmyelinated axons?

• Higher resting potential

• Presence of more neurotransmitters

• Increased number of dendrites

• Impulse jumping from one node to another

What is the main factor that causes the difference in charges between inside and outside of the cell?

• Ion concentrations

• Protein synthesis

• DNA replication

• Cellular respiration

What is the main factor that causes the change in membrane potential during an action potential?

• Cations passing through the membrane

• Anions passing through the membrane

• Presence of neurotransmitters

• Temperature of the environment

What is the main factor that causes the slower action potential in unmyelinated axons?

• Increased number of neurotransmitters

• Absence of myelin

• Presence of more dendrites

• Higher resting potential