The Nervous System, Neuron, and Action Potential

Front

What is the central nervous system (CNS) made of?

Back

The central nervous system (CNS) is made of the brain and spinal cord.

Front

What do sensory neurons carry nerve impulses to?

Back

Sensory neurons carry nerve impulses to the central nervous system (CNS).

Front

True or False: The sodium-potassium pump is involved in establishing the resting membrane potential.

Back

True

Front

What is NOT part of the peripheral nervous system (PNS)?

Back

The spinal cord is NOT part of the peripheral nervous system (PNS).

Front

What part of a neuron receives information from other neurons?

Back

Dendrites receive information from other neurons.

Front

What is the function of the axon in a neuron?

Back

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

Front

Define myelin sheath.

Back

Myelin sheath is a fatty layer that insulates axons and increases the speed of nerve impulse transmission.

Front

What is an action potential?

Back

An action potential is a rapid change in the electrical charge of a neuron that occurs when it is stimulated.

Front

What role do neurotransmitters play in the nervous system?

Back

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

Front

What is the function of sensory receptors?

Back

Sensory receptors detect stimuli from the environment and send information to the central nervous system.