Nerve Impulse Transmission

What is being identified with the arrows?

• calcium channels

• neurotransmitters

• receptors

• vesicles

When a neuron is at REST,

• the inside of the neuron is negatively charged compared to the outside.

• the inside of the neuron is positively charged compared to the outside.

• there is no charge difference established

• none of these is true

Acetylcholine, Dopamine, GABA, and Serotonin are all

• Dendrites

• Neurotransmitters

• Endorphins

• Neurons

part of a neuron that receives information from other neurons

• axon

• dendrites

• myelin sheath

• synapse

a signal molecule that transmits nerve impulses across synapses

• neuron

• neurotransmitter

• nerve

• action potential

When a neuron is depolarized, what are the first channels to open?

• Sodium

• Potassium

• Calcium

• ACTH

Which is the last step in the synaptic transmission of a nerve impulse from pre-synaptic neuron to a postsynaptic cells.

• a nerve impulse arrives at the axon terminal of the presynaptic cell

• vessicles in the presynaptic neutron fuse with the cell membrane

• neurotransmitter molecules are released into the synaptic cleft

• neurotransmitters bind to receptor proteins on the postsynaptic cell

What generates a nerve impulse on the post-synaptic membrane?

• Calcium binding with a receptor site

• Potassium leaking into the post-synaptic membrane 

• Neurotransmitter binding with receptor sites

• Neurotransmitter being removed from the synapse

When a neuron is resting, the inside of the axon has a ____________ charge.

• positive

• negative

Z

• Dendrite

• Axon Terminal

• Neurotransmitters

• Synapse