Chapter 11- An Introduction to the Nervous System

This part of the neuron is the main receptive region and consists of short branching extensions; conducts electrical signals in the form of graded potentials.

• Axon Terminal

• Dendrites

• Myelin Sheath

• Cell Body

The part of the neuron that insulates the axon and increases the speed of action potentials.

• Synapse

• Neurotransmitters

• Myelin Sheath

• Node of Ranvier

This part of the neuron stores and releases neurotransmitters into the synapse.

• Axon

• Dendrite

• Myelin Sheath

• Axon Terminal

What letter represents the structure that conducts graded potentials?

• A

• B

• C

• D

Which letter represents the structure from which neurotransmitters are released?

• A

• C

• D

• B

Which letter represents the fatty, protein-lipid material that surrounds and protects part of the neuron?

• A

• B

• D

• C

Which letter represents the process of the neuron that conducts action potentials?

• A

• D

• C

• B

Name the structure of the neuron that is represented by letter E.

• Synapse

• Cell Body

• Axon

• Dendrite

The location where communication between neurons occurs at is called the _______________.

• Axon terminal

• Synapse

• Neuromuscular junction

• Axon Hillock

What is the substance that is used to pass a nerve impulse from one neuron to the next?

• Calcium ions
• Sodium ions
• Potassium ions
• Neurotransmitters