Activity 2.2 Vocabulary Review

A nerve cell that sends signals or transmits nerve impulses.

• dendrite

• synapse

• neuron

• nerve

A branch extending from a neuron that receives signals from another neuron through a synapse.

• dendrite

• synapse

• neuron

• nerve

The long extension from a nerve cell along which signals travel.  

• dendrite

• synapse

• axon

• myelin

A fatty substance that surrounds the axon and increases the speed at which signals travel.

• dendrite

• synapse

• axon

• myelin

The gap between the branches extending from a neuron's axon that sends a signal to the next neuron.

• dendrite

• synapse

• axon

• myelin

Chemicals that assist in passing a signal through the synapse.

• neurotransmitter

• synapse

• neuron

• myelin