Match the denitions receive nerve impulses contains the nuceus and is the site of the cell's metabolic reations insulates neron and speeds the rate of nerve impulse transmissions releases chemical signals into the space between it and the receptors of neighbouring cells If the threshold level is not reached. the action potential will not occur at all. if the threshold is reached or exceeded an action potential will result. at rest. the neuron has a greater concentration of what outside the cell at rest. the neuron has a greater concentration of what inside the cell the recovery time required before a neuron can produce another action potential Choose... Choose... Choose... Choose... Choose... Choose... Choose... Choose... 1! (D 0 0 1D 0 (I i)