Nervous System Review

cone-shaped elevation where the axon joins the cell

• axon hillock

• synapse

• myelin sheath

• Nodes of Ranvier

Restoration of a resting membrane potential after depolarization

• depolarization

• repolarization

• synaptic cleft

• neurotransmitter

Many-layered covering composed of lipids and protien

• axon hillock

• synapse

• Myelin sheath

• Nodes of Ranvier

a tiny space filled with interstitial fluid

• depolarization

• repolarization

• synaptic cleft

• neurotransmitter

one of a variety of molecules within axon terminals that are released into the synaptic cleft

• depolarization

• repolarization

• synaptic cleft

• neurotransmitter

a reduction of voltage across a plasma membrane

• depolarization

• repolarization

• synaptic cleft

• neurotransmitter

gaps in the myelin sheath

• axon hillock

• synapse

• myelin sheath

• Nodes of Ranvier

a sequence of rapidly occurring events that decrease and reverse the membrane potential and then eventually restore it to the resting state

• Nodes of Ranvier

• membrane potential

• action potential

• depolarization

difference in the amount of electrical charge on the inside as compared to the outside of the plasma membrane

• Nodes of Ranvier

• membrane potential

• action potential

• depolarization

where two neurons or a neuron and an effector can communicate via neurotransmitter

• axon hillock

• synapse

• myelin sheath

• Nodes of Ranvier