Nervous System

Front

What is a nerve impulse?

Back

A nerve impulse is an electrical signal that travels along the axon of a neuron, known as an action potential.

Front

What part of the nervous system controls our senses?

Back

The Somatic Nervous System is part of the peripheral nervous system that controls our senses.

Front

What are the two parts of the Peripheral Nervous System?

Back

The two parts of the Peripheral Nervous System are the Somatic Nervous System and the Autonomic Nervous System.

Front

What is the purpose of the myelin sheath on the axon?

Back

The myelin sheath improves the conductivity of nerve impulses along the axon.

Front

What are dendrites?

Back

Dendrites are branch-like structures that receive impulses and conduct them to the cell body of a neuron.

Front

What is the function of the axon?

Back

The axon transmits nerve impulses away from the cell body to other neurons or muscles.

Front

What is the role of neurotransmitters?

Back

Neurotransmitters are chemicals that transmit signals across a synapse from one neuron to another.

Front

What is the difference between the somatic and autonomic nervous systems?

Back

The somatic nervous system controls voluntary movements, while the autonomic nervous system regulates involuntary functions.

Front

What is an action potential?

Back

An action potential is a rapid rise and fall in voltage across a neuron's membrane, allowing the transmission of nerve impulses.

Front

What is resting potential?

Back

Resting potential is the electrical charge of a neuron when it is not actively transmitting a signal.