A & P Neurons and Their Functions Practice

Front

What are axon terminals?

Back

Fine projections at the end of an axon that pass the impulse toward the next neuron.

Front

What is the function of the soma in a neuron?

Back

It produces proteins and molecules needed for the neuron to work properly.

Front

What is the myelin sheath?

Back

A lipid layer that insulates the axon and speeds up how quickly an impulse can pass.

Front

What does the axon do?

Back

Carries impulses away from the soma and towards the next neuron.

Front

What are Schwann cells?

Back

Cells that produce the myelin sheath in the peripheral nervous system.

Front

What is the role of dendrites in a neuron?

Back

They receive signals from other neurons and transmit them to the soma.

Front

What is the function of the nodes of Ranvier?

Back

They are gaps in the myelin sheath that facilitate rapid conduction of nerve impulses.

Front

What is the significance of the axon hillock?

Back

It is the part of the neuron where the action potential is initiated.

Front

What is the synaptic end bulb?

Back

It is the part of the neuron that releases neurotransmitters into the synapse.

Front

What is the purpose of the lipid layer in the myelin sheath?

Back

To insulate the axon and increase the speed of electrical impulses.