HBS 2.2: Neurons24

Front

What is the function of the Na/K Pumps in the neuron membrane?

Back

Rearranging Na and K back to return cell to resting state.

Front

What type of neurons carry information from the CNS to muscles?

Back

Motor neurons.

Front

What occurs during depolarization in a neuron?

Back

The inside of a cell becomes positive due to sodium gates opening.

Front

What is the function of serotonin in the nervous system?

Back

Regulating mood, sleep, appetite, and other functions.

Front

In what direction does the electrical signal travel through a neuron?

Back

From dendrites, down the Axon, and out Axon terminals.

Front

What is the resting potential of a neuron?

Back

The electrical charge difference across the membrane when the neuron is not firing.

Front

What is the role of dendrites in a neuron?

Back

To receive signals from other neurons.

Front

What is an action potential?

Back

A rapid rise and fall in voltage across a cellular membrane.

Front

What is the role of myelin sheath in neurons?

Back

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

Front

What are neurotransmitters?

Back

Chemical messengers that transmit signals across a synapse.